Qt: Fixed wrong SelStart and SelLen in OnEditingDone. issue #27079


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47191 4005530d-fff6-0310-9dd1-cebe43e6787f
Qt: cleanup


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@47192 4005530d-fff6-0310-9dd1-cebe43e6787f