Yes. There was a (rather hacky) fix for this in NotationWidget which no longer works. I have replaced it with a different (rather hacky) fix. See merge request.
bug 1721 fix notation note playing on insert
fix preview note in notatin editor
Yes - there is a check missing in NotationGroup::applyTuplingLine This bug can be reproduced easily: Create a 1 bar segment at composition start. Open it in the notation editor Press Ctrl-A (select all) and Ctrl-R (make triplet). Crash. I put in the check - see merge request.
bug 1781 notation crash
fix notation crash in applyTuplingLine
This bug led me into the murky world of MappedEventBuffers. A murky place of strange code lines and mystical algorithms. But anyway I believe I have a fix. See merge request.
bug 1780 tied notes with repeat