throw instead of silent noop

Change-Id: I47dddce1513a870c27844d88694295c5999c0c7f

sw/source/core/unocore/unotbl.cxx

@@ -1306,9 +1306,7 @@ void SwXTextTableRow::setPropertyValue(const OUString& rPropertyName, const uno:
            std::exception)
 {
     SolarMutexGuard aGuard;
-    SwFrmFmt* pFmt = GetFrmFmt();
-    if(pFmt)
-    {
+    SwFrmFmt* pFmt = lcl_EnsureCoreConnected(GetFrmFmt());
     SwTable* pTable = SwTable::FindTable( pFmt );
     SwTableLine* pLn = SwXTextTableRow::FindLine(pTable, pLine);
     if(pLn)
@@ -1384,7 +1382,6 @@ void SwXTextTableRow::setPropertyValue(const OUString& rPropertyName, const uno:
             }
         }
     }
-    }
 }
 
 uno::Any SwXTextTableRow::getPropertyValue(const OUString& rPropertyName) throw( beans::UnknownPropertyException, lang::WrappedTargetException, uno::RuntimeException, std::exception )