Fix a regression in collapsing the diff commit list.
Review Request #13294 — Created Sept. 29, 2023 and submitted
The diff commit list on the review request box regressed recently with
an event handler cleanup. Both expanding and collapsing the diff
resulted in an expanded state, as both handlers were passing
This updates the collapse handler to pass
false, allowing collapsing
to work again.
Manually tested repeatedly expanding and collapsing the list.
Verified this fixed unit test breakages.