Slur should be deleted when changing duration of note deletes subsequent notes connected to the slur.
- open change-note-duation-slur-fail.mscz
- click first note
- select duration whole note
Result: One slur is completely orphaned cause it lost chords for the first and last pitch, and so should be deleted. The other slur is still connected to the first note only, although I still think it should be deleted, because most likely user doesn't want to leave a partially connected slur:
MuseScore 2.3.2 deletes both slurs, which is what I think should happen, so I'm marking this as a regression.
I'm on MuseScore 3.0 release.