Overlapping voltas created by copy & paste

You had added more than one and to different staves.

I can reproduce this in a score from scratch, so I've changed the title to reflect what is happening. While I'm not 100% sure it's a bug as opposed to a feature, I think it's not good:

1) new score for two instruments
2) add a volta to some measure
3) add notes to top staff in that measure
4) select that measure in top staff, copy
5) select that measure in bottom staff, paste

Result: two overlapping voltas

I think perhaps voltas should simply be except from copy & paste, but am not sure. At the very least, there should be checks to be sure we aren't pasting onto a section that already has a volta.

There is really a bug with copying and pasting these Voltas.
Look that, or use this file e.g. : 2 flutes.mscz

1. So, score for two flutes -> fill a measure -> add a Volta
2. Select the measure. Note that Volta is highlighted, so the expected result is that it is copied and pasted into the second staff (as it works for all the other lines)

Result: two voltas overlap in the first staff (so, none in the second one as expected)

3. Now: separate the two voltas and edit the shorter of the two by extending it. So: Double-click -> Shift + right arrow

result:

The most unexpected is coming immediately ...

4. Undo
Result: the volta finally appears (it was time ...) in the second staff

5. Undo again:
Result: three voltas overlapping in the first staff

6. Undo again ...
Result: two of the three voltas disappear in the first staff, and that of the second staff keeps the left hook only.

7. Undo last time!
Result: the hook (and the number) in the second staff are the only ones to survive!

And voltas are not part of the selection filter, so can't get excluded.

So, after investigation, I found that the issue occurred on August 20 .

- Between this Nightly (where Volta is unselected: therefore, no risk for copy-paste!): cd74c4f

- and this one (where Volta is selected: with a bad copy-paste): 730b5cd

with all the next consequences as described (overlapping, undo, etc.) in the previous comment #4

So, without specific indicator on Voltas, this could be a side effect related to one or other of these commits (which refers hairpins, in particular) ?
- https://github.com/musescore/MuseScore/commit/b766748106f2d3c48d4ec7acf…
- https://github.com/musescore/MuseScore/commit/05540778c14b5a348ed3048cb…
- https://github.com/musescore/MuseScore/commit/e150fb5152b9ccf4a41716cb8…

And precisely because I see the same behavior change with these hairpins (unselected -> selected) at the same time in the same Nightlies. It works for hairpins, it doesn't works for voltas.

Would it be fair to say the expected result is that voltas are never part of a range selection and thus are never part of a copy/paste? That would also mean they would not be deleted when you select a measure and hit delete (this much is currently already the case, although there was a lot of back and forth on this subject shortly before Beta 1).

It should be easy to implement a fix based on this; I will give it a shot.

If they should be part of a range selections, they'd need to be (de)selectable in the selection filter (and probably default to off)

https://github.com/musescore/MuseScore/pull/1586

Fixed in 626e35ff57

Automatically closed -- issue fixed for 2 weeks with no activity.