XML Import of certain malformend file crashes MuseScore 3
Steps to reproduce:
mscore viva.xml -o viva.ogg
or from UI: file->export -> (choose .ogg as type)
gdb shows the error is due to Tremolo.
Opening the xml with mscore shows that it is slightly malformed but it still opens it correctly.
If it is then saved as mscz file, then opening that mscz file also causes a segfault.
As the XML is shown to be malformed, I'd guess its a minor issue, but segfaults might be indicative of some deeper bugs.