fdo#64448: Don't get type name from incorrect filter.

This causes wrong format type to get "detected" when testing for a
completely different file format type.

Change-Id: I230759e2be432beeae2db24c12369ccb4585f334

sc/source/ui/unoobj/scdetect.cxx

@@ -794,10 +794,9 @@ OUString SAL_CALL ScFilterDetect::detect( uno::Sequence<beans::PropertyValue>& l
             lDescriptor[nIndexOfFilterName].Value <<= OUString(pFilter->GetName());
     }
 
-    if ( pFilter )
-        aTypeName = pFilter->GetTypeName();
-    else
+    if (!pFilter)
         aTypeName.Erase();
+
     return aTypeName;
 }
 

sd/source/ui/unoidl/sddetect.cxx

@@ -496,9 +496,7 @@ OUString SAL_CALL SdFilterDetect::detect( Sequence< beans::PropertyValue >& lDes
             lDescriptor[nIndexOfDocumentTitle].Value <<= aDocumentTitle;
     }
 
-    if ( pFilter )
-        aTypeName = pFilter->GetTypeName();
-    else
+    if (!pFilter)
         aTypeName = OUString();
 
     return aTypeName;