Info box on duplicate question states you should ask a new one instead of editing the original question
15326
Duplicate explanation should encourage improvement of original
44392
Questions closed as duplicates should include a link to the original question
89721
When should one add another answer instead of editing one's already posted?
18509
Does the new guidance on duplicate questions suggest closing a question as duplicate, if the original answers the OP's question?
82853
Can Community ♦ raise a duplicate content flag when an answer is deleted and re-posted as a new answer?
44211
Duplicate notification for the same reputation event after editing question title
147570
Mark questions as duplicate of tag wiki
33502
Remove Punctuation When Checking for Duplicate Titled Questions
14629
Should I vote to close a duplicate question, even though it's much newer, and has more up to date answers?
105704
Question closed as duplicate with  and also shown as "Possible duplicate"
46526
Duplicate question etiquette: to delete or not to delete?
106952
"Please ask a new question" encourages question repetition for duplicates
24930
Auto comment "possible duplicate of ..." missing on voting to close as duplicate
33698
Editing old questions
113626
"Close as duplicate" - what if only the answer is a duplicate?
66262
Nothing happens when I press "Submit" on duplicate suggestion
49761
Editing question title creates whole new question and other question list problems