Barline for uppermost staff disappears when adding double barline at start of system
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 126.96.36.19985, revision: c1a5e4c
1. Create a score with barlines at the start of each system
2. Click on a barline at the start of a system, and double click double barline on the palate, or drag and drop the double barline
Expected: all staves in that system will start with a double barline
Actual: only lower staves (if there are any) will start with a double barline, and the barline of the uppermost staff will disappear, including if it is the only staff.
1. Follow reproduction steps
2. Save and reopen
Double barline will appear for all staves.