I'm developing a TextMate bundle for Elm and implemented "Reformat Document" today. Unfortunately, I noticed a rendering glitch that seems to happen sporadically. I managed to record a video showcasing the behaviour. See https://i.fluffy.cc/JhkwfX3wxXvRFR9WPVdPhsLz3FPsfGg7.mov.

In the video, I add a couple of newlines, and elm-format removes them as expected. However, TextMate does not seem to like this (as can be seen in the video). Reopening the files shows that everything is in order and that it in fact was a rendering glitch.

Any ideas to why this happen?

Thanks,

Kevin