IDE: mode matrix: do not undo active

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40941 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: mode matrix: redo

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40942 4005530d-fff6-0310-9dd1-cebe43e6787f