musescore/MuseScore — pull request #995 by mgavioli (2014-06-20 22:31:06+00:00)
Title: Incomplete re-layout when the group of a staff is changed.

If a staff type is changed from one group to another (like standard <=> TAB), lines or frets/strings for notes are not recalculated.

Fixed by adding a `Score::cmdUpdateNotes()` call to `ChangeStaffType::redo()` and `::undo()` when the group of the staff type changes.