coverity#1325055 Unchecked dynamic_cast

Change-Id: Ib4017c3e771ed62a92328aced105c70159a2f1e2

svx/source/svdraw/svdedxv.cxx

@@ -567,13 +567,12 @@ void SdrObjEditView::ImpMoveCursorAfterChainingEvent(TextChainCursorManager *pCu
     SdrTextObj* pTextObj = dynamic_cast<SdrTextObj*>(mxTextEditObj.get());
 
     // Check if it has links to move it to
-    if (!pTextObj->IsChainable())
+    if (!pTextObj || !pTextObj->IsChainable())
         return;
 
     TextChain *pTextChain = pTextObj->GetTextChain();
     ESelection aNewSel = pTextChain->GetPostChainingSel(pTextObj);
 
-
     pCursorManager->HandleCursorEventAfterChaining(
         pTextChain->GetCursorEvent(pTextObj),
         aNewSel);