musescore/MuseScore — pull request #608 by mgavioli (2013-12-28 22:12:45+00:00)
Title: Fix bracket drag'n'drop

Hiding a bracket spanning a single staff, hides also a bracket just dragged and dropped from the palette.

Fixed by distinguishing during System::layout2() between a multi-staf bracket accidentally covering a single visible staff and a bracket really spanning a single staff.

This also allows to have a bracket intentionally spanning a single staff, should the user need it.