[ #13035 ] Fix crash when hangging up coferences with ourself

kde/src/CallView.cpp

@@ -588,10 +588,12 @@ void CallView::destroyCall(Call* toDestroy)
    else if (SFLPhone::model()->getIndex(toDestroy)->parent()) {
       QTreeWidgetItem* callIndex = SFLPhone::model()->getIndex(toDestroy);
       QTreeWidgetItem* parent = callIndex->parent();
+      if (indexOfTopLevelItem(parent) != -1) {
          parent->removeChild(callIndex);
          if (dynamic_cast<QTreeWidgetItem*>(parent) && parent->childCount() == 0) /*This should never happen, but it does*/
             takeTopLevelItem(indexOfTopLevelItem(parent));
       }
+   }
    else
       kDebug() << "Call not found";
 } //destroyCall