Fix crash in search filter which can occur if the search bar is removed whilst...

Fix crash in search filter which can occur if the search bar is removed whilst the search is in progress.

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=689757

src/SessionController.cpp

@@ -716,7 +716,8 @@ void SessionController::beginSearch(const QString& text , int direction)
     QRegExp::PatternSyntax syntax = _searchBar->matchRegExp() ? QRegExp::RegExp : QRegExp::FixedString;
     
     QRegExp regExp( text.trimmed() ,  caseHandling , syntax );
-
+    _searchFilter->setRegExp(regExp);
+    
     if ( !regExp.isEmpty() )
     {
         SearchHistoryTask* task = new SearchHistoryTask(this); 
@@ -730,7 +731,6 @@ void SessionController::beginSearch(const QString& text , int direction)
         task->execute();
     }
 
-    _searchFilter->setRegExp(regExp);
     _view->processFilters();
 
       // TODO - Optimise by only updating affected regions