clear-pr-merge-commit-message occasionally fails

[fregante]

Description

This commit was sent (notice non-empty commit body)

b3e7358

How to replicate the issue + URL

1. Open PR with a bunch of files sandbox#55
2. Click "Merge" to open the box
3. Notice that the box has been cleared
4. Submit a new comment
5. Notice box is closed when the comment is submitted
6. Reopen box
7. ❌ The commit message has returned and is empty

Extension version

23.4.15

Browser(s) used

Safari

[raiyni]

Not sure if this is the correct issue but this has been happening for a few months now where the extended description box for Squash and merge is filled with all of the commit message garbage.

[fregante]

My guess is that GitHub fills up the field a second time, but Refined GitHub does not catch that because it's the same field.

Maybe GitHub fires some event we can listen to, or we have to go back to the "open merge box" event via delegate