We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Unnecessary SQL select for react home landing page
The React landing page view extracts the default filters. Every time but it's never used. 
<img width="1502" alt="Screen Shot 2019-08-13 at 2 44 39 PM" src="https://user-images.githubusercontent.com/26739/62968514-34a08a00-bdd9-11e9-92fb-c584683c7085.png">


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `kuma/landing/views.py`
Content:
```
1 from __future__ import unicode_literals
2 
3 from django.conf import settings
4 from django.http import HttpResponse
5 from django.shortcuts import redirect, render
6 from django.views import static
7 from django.views.decorators.cache import never_cache
8 from django.views.generic import RedirectView
9 
10 from kuma.core.decorators import ensure_wiki_domain, shared_cache_control
11 from kuma.core.utils import is_wiki
12 from kuma.feeder.models import Bundle
13 from kuma.feeder.sections import SECTION_HACKS
14 from kuma.search.models import Filter
15 
16 from .utils import favicon_url
17 
18 
19 @shared_cache_control
20 def contribute_json(request):
21     return static.serve(request, 'contribute.json', document_root=settings.ROOT)
22 
23 
24 @shared_cache_control
25 def home(request):
26     """Home page."""
27     if is_wiki(request):
28         return render_home(request, 'landing/homepage.html')
29     return render_home(request, 'landing/react_homepage.html')
30 
31 
32 def render_home(request, template_name):
33     """Render the home page with the template named "template_name"."""
34     updates = list(Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])
35     default_filters = Filter.objects.default_filters()
36     context = {
37         'updates': updates,
38         'default_filters': default_filters,
39     }
40     return render(request, template_name, context)
41 
42 
43 @ensure_wiki_domain
44 @never_cache
45 def maintenance_mode(request):
46     if settings.MAINTENANCE_MODE:
47         return render(request, 'landing/maintenance-mode.html')
48     else:
49         return redirect('home')
50 
51 
52 @ensure_wiki_domain
53 @shared_cache_control
54 def promote_buttons(request):
55     """Bug 646192: MDN affiliate buttons"""
56     return render(request, 'landing/promote_buttons.html')
57 
58 
59 ROBOTS_ALLOWED_TXT = '''\
60 User-agent: *
61 Sitemap: https://developer.mozilla.org/sitemap.xml
62 
63 Disallow: /admin/
64 Disallow: /api/
65 Disallow: /*/dashboards/*
66 Disallow: /*docs/feeds
67 Disallow: /*docs/templates
68 Disallow: /*docs*Template:
69 Disallow: /*docs/all
70 Disallow: /*docs/tag*
71 Disallow: /*docs/needs-review*
72 Disallow: /*docs/localization-tag*
73 Disallow: /*docs/with-errors
74 Disallow: /*docs/without-parent
75 Disallow: /*docs/top-level
76 Disallow: /*docs/new
77 Disallow: /*docs/get-documents
78 Disallow: /*docs/submit_akismet_spam
79 Disallow: /*docs/load*
80 Disallow: /*docs/Experiment:*
81 Disallow: /*$api
82 Disallow: /*$compare
83 Disallow: /*$revision
84 Disallow: /*$history
85 Disallow: /*$children
86 Disallow: /*$flag
87 Disallow: /*$locales
88 Disallow: /*$toc
89 Disallow: /*$move
90 Disallow: /*$quick-review
91 Disallow: /*$samples
92 Disallow: /*$revert
93 Disallow: /*$repair_breadcrumbs
94 Disallow: /*$delete
95 Disallow: /*$restore
96 Disallow: /*$purge
97 Disallow: /*$subscribe
98 Disallow: /*$subscribe_to_tree
99 Disallow: /*$vote
100 Disallow: /*docs.json
101 Disallow: /*docs/ckeditor_config.js
102 Disallow: /*/files/
103 Disallow: /media
104 Disallow: /*move-requested
105 Disallow: /*preview-wiki-content
106 Disallow: /*profiles*/edit
107 Disallow: /skins
108 Disallow: /*type=feed
109 Disallow: /*users/
110 ''' + '\n'.join('Disallow: /{locale}/search'.format(locale=locale)
111                 for locale in settings.ENABLED_LOCALES)
112 
113 ROBOTS_GO_AWAY_TXT = '''\
114 User-Agent: *
115 Disallow: /
116 '''
117 
118 
119 @shared_cache_control
120 def robots_txt(request):
121     """Serve robots.txt that allows or forbids robots."""
122     host = request.get_host()
123     if host in settings.ALLOW_ROBOTS_DOMAINS:
124         robots = ""
125     elif host in settings.ALLOW_ROBOTS_WEB_DOMAINS:
126         robots = ROBOTS_ALLOWED_TXT
127     else:
128         robots = ROBOTS_GO_AWAY_TXT
129     return HttpResponse(robots, content_type='text/plain')
130 
131 
132 class FaviconRedirect(RedirectView):
133     """Redirect to the favicon in the static img folder (bug 1402497)"""
134 
135     def get_redirect_url(self, *args, **kwargs):
136         return favicon_url()
137
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/kuma/landing/views.py b/kuma/landing/views.py
--- a/kuma/landing/views.py
+++ b/kuma/landing/views.py
@@ -24,19 +24,16 @@
 @shared_cache_control
 def home(request):
     """Home page."""
+    context = {}
+    # Need for both wiki and react homepage
+    context['updates'] = list(
+        Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])
+
+    # The default template name
+    template_name = 'landing/react_homepage.html'
     if is_wiki(request):
-        return render_home(request, 'landing/homepage.html')
-    return render_home(request, 'landing/react_homepage.html')
-
-
-def render_home(request, template_name):
-    """Render the home page with the template named "template_name"."""
-    updates = list(Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])
-    default_filters = Filter.objects.default_filters()
-    context = {
-        'updates': updates,
-        'default_filters': default_filters,
-    }
+        template_name = 'landing/homepage.html'
+        context['default_filters'] = Filter.objects.default_filters()
     return render(request, template_name, context)

{"golden_diff": "diff --git a/kuma/landing/views.py b/kuma/landing/views.py\n--- a/kuma/landing/views.py\n+++ b/kuma/landing/views.py\n@@ -24,19 +24,16 @@\n @shared_cache_control\n def home(request):\n     \"\"\"Home page.\"\"\"\n+    context = {}\n+    # Need for both wiki and react homepage\n+    context['updates'] = list(\n+        Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])\n+\n+    # The default template name\n+    template_name = 'landing/react_homepage.html'\n     if is_wiki(request):\n-        return render_home(request, 'landing/homepage.html')\n-    return render_home(request, 'landing/react_homepage.html')\n-\n-\n-def render_home(request, template_name):\n-    \"\"\"Render the home page with the template named \"template_name\".\"\"\"\n-    updates = list(Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])\n-    default_filters = Filter.objects.default_filters()\n-    context = {\n-        'updates': updates,\n-        'default_filters': default_filters,\n-    }\n+        template_name = 'landing/homepage.html'\n+        context['default_filters'] = Filter.objects.default_filters()\n     return render(request, template_name, context)\n", "issue": "Unnecessary SQL select for react home landing page\nThe React landing page view extracts the default filters. Every time but it's never used. \r\n<img width=\"1502\" alt=\"Screen Shot 2019-08-13 at 2 44 39 PM\" src=\"https://user-images.githubusercontent.com/26739/62968514-34a08a00-bdd9-11e9-92fb-c584683c7085.png\">\r\n\n", "before_files": [{"content": "from __future__ import unicode_literals\n\nfrom django.conf import settings\nfrom django.http import HttpResponse\nfrom django.shortcuts import redirect, render\nfrom django.views import static\nfrom django.views.decorators.cache import never_cache\nfrom django.views.generic import RedirectView\n\nfrom kuma.core.decorators import ensure_wiki_domain, shared_cache_control\nfrom kuma.core.utils import is_wiki\nfrom kuma.feeder.models import Bundle\nfrom kuma.feeder.sections import SECTION_HACKS\nfrom kuma.search.models import Filter\n\nfrom .utils import favicon_url\n\n\n@shared_cache_control\ndef contribute_json(request):\n    return static.serve(request, 'contribute.json', document_root=settings.ROOT)\n\n\n@shared_cache_control\ndef home(request):\n    \"\"\"Home page.\"\"\"\n    if is_wiki(request):\n        return render_home(request, 'landing/homepage.html')\n    return render_home(request, 'landing/react_homepage.html')\n\n\ndef render_home(request, template_name):\n    \"\"\"Render the home page with the template named \"template_name\".\"\"\"\n    updates = list(Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])\n    default_filters = Filter.objects.default_filters()\n    context = {\n        'updates': updates,\n        'default_filters': default_filters,\n    }\n    return render(request, template_name, context)\n\n\n@ensure_wiki_domain\n@never_cache\ndef maintenance_mode(request):\n    if settings.MAINTENANCE_MODE:\n        return render(request, 'landing/maintenance-mode.html')\n    else:\n        return redirect('home')\n\n\n@ensure_wiki_domain\n@shared_cache_control\ndef promote_buttons(request):\n    \"\"\"Bug 646192: MDN affiliate buttons\"\"\"\n    return render(request, 'landing/promote_buttons.html')\n\n\nROBOTS_ALLOWED_TXT = '''\\\nUser-agent: *\nSitemap: https://developer.mozilla.org/sitemap.xml\n\nDisallow: /admin/\nDisallow: /api/\nDisallow: /*/dashboards/*\nDisallow: /*docs/feeds\nDisallow: /*docs/templates\nDisallow: /*docs*Template:\nDisallow: /*docs/all\nDisallow: /*docs/tag*\nDisallow: /*docs/needs-review*\nDisallow: /*docs/localization-tag*\nDisallow: /*docs/with-errors\nDisallow: /*docs/without-parent\nDisallow: /*docs/top-level\nDisallow: /*docs/new\nDisallow: /*docs/get-documents\nDisallow: /*docs/submit_akismet_spam\nDisallow: /*docs/load*\nDisallow: /*docs/Experiment:*\nDisallow: /*$api\nDisallow: /*$compare\nDisallow: /*$revision\nDisallow: /*$history\nDisallow: /*$children\nDisallow: /*$flag\nDisallow: /*$locales\nDisallow: /*$toc\nDisallow: /*$move\nDisallow: /*$quick-review\nDisallow: /*$samples\nDisallow: /*$revert\nDisallow: /*$repair_breadcrumbs\nDisallow: /*$delete\nDisallow: /*$restore\nDisallow: /*$purge\nDisallow: /*$subscribe\nDisallow: /*$subscribe_to_tree\nDisallow: /*$vote\nDisallow: /*docs.json\nDisallow: /*docs/ckeditor_config.js\nDisallow: /*/files/\nDisallow: /media\nDisallow: /*move-requested\nDisallow: /*preview-wiki-content\nDisallow: /*profiles*/edit\nDisallow: /skins\nDisallow: /*type=feed\nDisallow: /*users/\n''' + '\\n'.join('Disallow: /{locale}/search'.format(locale=locale)\n                for locale in settings.ENABLED_LOCALES)\n\nROBOTS_GO_AWAY_TXT = '''\\\nUser-Agent: *\nDisallow: /\n'''\n\n\n@shared_cache_control\ndef robots_txt(request):\n    \"\"\"Serve robots.txt that allows or forbids robots.\"\"\"\n    host = request.get_host()\n    if host in settings.ALLOW_ROBOTS_DOMAINS:\n        robots = \"\"\n    elif host in settings.ALLOW_ROBOTS_WEB_DOMAINS:\n        robots = ROBOTS_ALLOWED_TXT\n    else:\n        robots = ROBOTS_GO_AWAY_TXT\n    return HttpResponse(robots, content_type='text/plain')\n\n\nclass FaviconRedirect(RedirectView):\n    \"\"\"Redirect to the favicon in the static img folder (bug 1402497)\"\"\"\n\n    def get_redirect_url(self, *args, **kwargs):\n        return favicon_url()\n", "path": "kuma/landing/views.py"}], "after_files": [{"content": "from __future__ import unicode_literals\n\nfrom django.conf import settings\nfrom django.http import HttpResponse\nfrom django.shortcuts import redirect, render\nfrom django.views import static\nfrom django.views.decorators.cache import never_cache\nfrom django.views.generic import RedirectView\n\nfrom kuma.core.decorators import ensure_wiki_domain, shared_cache_control\nfrom kuma.core.utils import is_wiki\nfrom kuma.feeder.models import Bundle\nfrom kuma.feeder.sections import SECTION_HACKS\nfrom kuma.search.models import Filter\n\nfrom .utils import favicon_url\n\n\n@shared_cache_control\ndef contribute_json(request):\n    return static.serve(request, 'contribute.json', document_root=settings.ROOT)\n\n\n@shared_cache_control\ndef home(request):\n    \"\"\"Home page.\"\"\"\n    context = {}\n    # Need for both wiki and react homepage\n    context['updates'] = list(\n        Bundle.objects.recent_entries(SECTION_HACKS.updates)[:5])\n\n    # The default template name\n    template_name = 'landing/react_homepage.html'\n    if is_wiki(request):\n        template_name = 'landing/homepage.html'\n        context['default_filters'] = Filter.objects.default_filters()\n    return render(request, template_name, context)\n\n\n@ensure_wiki_domain\n@never_cache\ndef maintenance_mode(request):\n    if settings.MAINTENANCE_MODE:\n        return render(request, 'landing/maintenance-mode.html')\n    else:\n        return redirect('home')\n\n\n@ensure_wiki_domain\n@shared_cache_control\ndef promote_buttons(request):\n    \"\"\"Bug 646192: MDN affiliate buttons\"\"\"\n    return render(request, 'landing/promote_buttons.html')\n\n\nROBOTS_ALLOWED_TXT = '''\\\nUser-agent: *\nSitemap: https://developer.mozilla.org/sitemap.xml\n\nDisallow: /admin/\nDisallow: /api/\nDisallow: /*/dashboards/*\nDisallow: /*docs/feeds\nDisallow: /*docs/templates\nDisallow: /*docs*Template:\nDisallow: /*docs/all\nDisallow: /*docs/tag*\nDisallow: /*docs/needs-review*\nDisallow: /*docs/localization-tag*\nDisallow: /*docs/with-errors\nDisallow: /*docs/without-parent\nDisallow: /*docs/top-level\nDisallow: /*docs/new\nDisallow: /*docs/get-documents\nDisallow: /*docs/submit_akismet_spam\nDisallow: /*docs/load*\nDisallow: /*docs/Experiment:*\nDisallow: /*$api\nDisallow: /*$compare\nDisallow: /*$revision\nDisallow: /*$history\nDisallow: /*$children\nDisallow: /*$flag\nDisallow: /*$locales\nDisallow: /*$toc\nDisallow: /*$move\nDisallow: /*$quick-review\nDisallow: /*$samples\nDisallow: /*$revert\nDisallow: /*$repair_breadcrumbs\nDisallow: /*$delete\nDisallow: /*$restore\nDisallow: /*$purge\nDisallow: /*$subscribe\nDisallow: /*$subscribe_to_tree\nDisallow: /*$vote\nDisallow: /*docs.json\nDisallow: /*docs/ckeditor_config.js\nDisallow: /*/files/\nDisallow: /media\nDisallow: /*move-requested\nDisallow: /*preview-wiki-content\nDisallow: /*profiles*/edit\nDisallow: /skins\nDisallow: /*type=feed\nDisallow: /*users/\n''' + '\\n'.join('Disallow: /{locale}/search'.format(locale=locale)\n                for locale in settings.ENABLED_LOCALES)\n\nROBOTS_GO_AWAY_TXT = '''\\\nUser-Agent: *\nDisallow: /\n'''\n\n\n@shared_cache_control\ndef robots_txt(request):\n    \"\"\"Serve robots.txt that allows or forbids robots.\"\"\"\n    host = request.get_host()\n    if host in settings.ALLOW_ROBOTS_DOMAINS:\n        robots = \"\"\n    elif host in settings.ALLOW_ROBOTS_WEB_DOMAINS:\n        robots = ROBOTS_ALLOWED_TXT\n    else:\n        robots = ROBOTS_GO_AWAY_TXT\n    return HttpResponse(robots, content_type='text/plain')\n\n\nclass FaviconRedirect(RedirectView):\n    \"\"\"Redirect to the favicon in the static img folder (bug 1402497)\"\"\"\n\n    def get_redirect_url(self, *args, **kwargs):\n        return favicon_url()\n", "path": "kuma/landing/views.py"}]}