Time signature with custom text does not display custom text when inside a multimeasure rest

[fredg999]

Issue type

Engraving bug

Bug description

A time signature with custom text, e.g. 3+4/8, only displays properly with the custom text if multimeasure rests are disabled. If multimeasure rests are enabled, it displays according to the "value" as entered in the time signature properties, e.g. 7/8 in this example.

Expected behaviour: the custom text should be displayed with either multimeasure rests enabled or disabled.

Steps to reproduce

1. Create a custom time signature with a custom text (e.g. 3+4/8).
2. Apply this time signature to a bar.
3. Make sure there are at least two consecutive bars of rest following this time signature.
4. Toggle multimeasure rests (keyboard shortcut: 'M'). You might have to toggle more than once, it might display properly the first time only (see screenshot below), but the issue should arise on subsequent toggles or after other edits (e.g. changing the bar stretch).
5. Notice that the time signature displays differently with multimeasure rests enabled or disabled.

Known workaround:

1. Save file with multimeasure rests disabled.
2. Close and reopen file.
3. Enable multimeasure rests. Make sure to toggle only once.
4. The time signatures should display properly... until it breaks again (see details in step 4 above).

Screenshots/Screen recordings

Custom time signature issue.zip
(replace .zip extension with .mscz before opening)


Expected behaviour (works after the first toggle only):

MuseScore Version

4.0.2

Regression

No (also observed in 3.6.2).

Operating system

Arch Linux (Linux 6.2.8)

Additional context