fix #19817 Crash on loading a file with incoplete slur spanner and linked part
timesig change causes infinite loop in case of tuplets
fix crash if last element is not a measure
propagate rehearsal mark to all parts
Play notes being added to a chord.

When entering notes via midi, if the first note is held down while
more notes are played, to enter a chord of notes, only the first
note sounds. This patch allows the subsequent notes to be heard.

NB. If two notes are pressed at exactly the same time so that they
are both processed in a single call to Score::processMidiInput(),
then still only one of them will be heard.
fix #20174
Merge pull request #233 from lvinken/musicxml-fixes

fix #20174
Merge pull request #232 from softins/play-midi-added-notes

Play notes being added to a chord.
fix text palette handling
change edit mode implementation
updates for new element edit mode schema
strong typing of ArpeggioType
std::nan not available on mac
Correctly choosing the end segment when selecting only one or the last measure
fix delete/add start/end repeat bars in scores with parts
fix #10054: Parts don't preserve stem direction
implement images/symbols anchord to segments for parts
fix regression tests
Merge pull request #234 from Soerboe/SelectConsistency

Correctly choosing the end segment when selecting only one or the last m...
Merge pull request #223 from AntonioBL/timesig_change_infinte_loop

fix #18963 dragging timesig cause crash