Kasper Nilsson 80ca288da5 Delete draft comment when saved with empty text
Recently, the comment editing UX was changed (the discard button was
removed from the editing view). This (obviously) made it impossible to
discard a draft comment whilst editing it.

Editing a comment, clearing the text, and saving now removes the
comment.

Bug: Issue 7832
Change-Id: I0dae814b9ce2e7a5b57530f839c708e59c215341
2017-11-27 16:37:11 -08:00
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