When a draft is shorter than 70 characters it auto-collapses after
save to minimize the vertical screen space consumed by the widget.
If a user clicks on this draft, they are most likely doing so to make
a quick modification. Save a few actions by starting edit immediately
on single click. The user can cancel or press Escape to undo the edit
and have the comment collapse again.
Change-Id: I32fd65c5b5bd0ed06797ef5fb675a48f8161add4
cadd2f0952