fftester: guard against empty table manager stack

Change-Id: Ibb4cadb58aa17eacfc9741f7f13c780be347cd8b

writerfilter/source/dmapper/DomainMapper_Impl.cxx

@@ -1306,7 +1306,6 @@ void DomainMapper_Impl::appendTextPortion( const OUString& rString, const Proper
     }
 }
 
-
 void DomainMapper_Impl::appendTextContent(
     const uno::Reference< text::XTextContent >& xContent,
     const uno::Sequence< beans::PropertyValue >& xPropertyValues
@@ -1317,7 +1316,7 @@ void DomainMapper_Impl::appendTextContent(
         return;
     uno::Reference< text::XTextAppendAndConvert >  xTextAppendAndConvert( m_aTextAppendStack.top().xTextAppend, uno::UNO_QUERY );
     OSL_ENSURE( xTextAppendAndConvert.is(), "trying to append a text content without XTextAppendAndConvert" );
-    if(xTextAppendAndConvert.is() && ! getTableManager( ).isIgnore())
+    if (xTextAppendAndConvert.is() && hasTableManager() && !getTableManager().isIgnore())
     {
         try
         {
@@ -1335,7 +1334,6 @@ void DomainMapper_Impl::appendTextContent(
     }
 }
 
-
 void DomainMapper_Impl::appendOLE( const OUString& rStreamName, const OLEHandlerPtr& pOLEHandler )
 {
     static const char sEmbeddedService[] = "com.sun.star.text.TextEmbeddedObject";