Apply Measure Properties only applies some settings to last selected measure

Issue type

UX/Interaction bug (incorrect behaviour)

Bug description

If you select multiple measures and bring up the measure properties command, then property changes only apply to the last measure in the selection, even when it would sensible/useful to apply to all.

Steps to reproduce

Select 2 consecutive measures
Right click and choose "measure properties"
Change actual beats per bar (e.g. to 5)
Click OK

Actual behaviour: + to indicate extra beats only shown for second measure
Expected: both measures should have the same property change applied

(Actually my use case was the reverse, an imported file had an extra beat in every single measure. Because of this bug I had to fix them all one by one. Arguably the problem could also be fixed at the xml import stage, but it was a problematic xml file, and at any rate, it's still reasonable to expect if you select multiple measures and change properties it applies to all of them).

Screenshots/Screen recordings

No response

MuseScore Version

4.2

Regression

I don't know

Operating system

Windows 11

Additional context

No response

Start by reproducing the issue in MuseScore 4.2 with two consecutive measures selected, then trace the Measure Properties command's handling of multi-measure selections. Done means changing actual beats per bar updates every selected measure, with the reported behavior covered by a regression check.