Deleting a barline in main score will not delete the barline in parts
P1 - High
S3 - Major
Happens in 3.0-dev c231be2 but not in 2.0.3:
- select or or more non-NORMAL barlines in main score
- press delete
Observe that in part excerpts, the barlines are not deleted.
Also if try to delete a non-NORMAL barline in a part excerpt, that nothing happens.