td>yes</td></tr><tr><td>unset</td><td>yes</td><td><code>false</code></td><td>yes</td></tr><tr><td>unset</td><td>no</td><td><code>true</code></td><td>no</td></tr><tr><td>unset</td><td>no</td><td><code>false</code></td><td>no</td></tr><tr><td>unset</td><td>unset</td><td><code>true</code></td><td>yes</td></tr><tr><td>unset</td><td>unset</td><td><code>false</code></td><td>no</td></tr></tbody></table><div><aside class="callout idea"><div class=type><svg class="large-icon"><use xlink:href="/v1.4/img/icons.svg#cal