[LyX master] Fix to #8159: Undo doesn't restore environment depth correctly

The branch, master, has been updated. - Log - commit bbbc2b654175edbccb1ce54ae6dbb15f8a042360 Author: Jean-Marc Lasgouttes lasgout...@lyx.org Date: Mon Jun 4 18:02:59 2012 +0200 Fix to #8159: Undo doesn't restore environment

[LyX master] Fix to #8159: Undo doesn't restore environment depth correctly

The branch, master, has been updated. - Log - commit bbbc2b654175edbccb1ce54ae6dbb15f8a042360 Author: Jean-Marc Lasgouttes Date: Mon Jun 4 18:02:59 2012 +0200 Fix to #8159: Undo doesn't restore