[MU4 Issue] Loop region length is not recalculated after tempo change/tempo slider change

[abariska]

To Reproduce
Steps to reproduce the behavior:

1. Create a simple score with notes
2. Enable a loop for two measures
3. Put the tempo change to the first measure of the loop region
4. Play
5. Pay attention to the loop region length

Expected behavior
Loop region length is recalculated after tempo change according to the new tempo

Screenshots

Capture.2022-08-23_12-38-35_AM.mov

[Obliquely]

This is a different issue, but perhaps the fix would be similar. RomanPudashkin@2e59307

[abariska]

@RomanPudashkin Please, pay attention that after undo applied there's a similar issue reproduces

CleanShot.2022-09-07.at.16.19.23.mp4

[abariska]

Also, playback cursor position is moved back out of loop region when making tempo way slower via slider on undocked transport panel. It's not a regression but could be related to current issue.

CleanShot.2022-09-12.at.17.20.59.mp4

[abariska]

Info: Only main case was fixed and merged but bugs in the last two comments were not

[Jojo-Schmitz]

Just came up again in https://musescore.org/en/node/345254
It is not just when adding a tempo change, it seems to happen on every score that is not at the default tempo (of 120BPM)

Hmm, maybe not, might be a different issue