I encountered what looks like a really strange bug on this PR: https://github.com/xpbrew/cordova-sqlite-storage/pull/921
I started to do a squash merge and reached the point of editing the squash commit message. But then I changed my mind and decided to push some more updates before merging, then do rebase and push. I pushed another commit then did refresh without cancelling the squash merge (which I know is definitely not the best way to use the web GUI), then the refreshed page was ready to do a squash merge.
Every time I would refresh the page, it would show me the merge commit editor with a “Confirm merge” button. Even when I cancelled the squash merge and refreshed again, it still did show me the merge commit editor with “Confirm merge” button.
While I would not consider this to be a very common or serious issue, I think it would be nice to get it fixed someday.