fdo#61256 - the Get.*Export methods also create and register styles

unwind problem introduced by cleanup in:
fd226710

xmloff/source/draw/sdxmlexp.cxx

@@ -448,6 +448,8 @@ void SAL_CALL SdXMLExport::setSourceDocument( const Reference< lang::XComponent
         // construct PropertySetMapper
         UniReference < XMLPropertySetMapper > xMapper = new XMLShapePropertySetMapper( aFactoryRef);
 
+        // get or create text paragraph export
+        GetTextParagraphExport();
         mpPropertySetMapper = new XMLShapeExportPropertyMapper( xMapper, *this );
         // set lock to avoid deletion
         mpPropertySetMapper->acquire();

xmloff/source/draw/shapeexport.cxx

@@ -1014,6 +1014,7 @@ SvXMLExportPropertyMapper* XMLShapeExport::CreateShapePropMapper(
 {
     UniReference< XMLPropertyHandlerFactory > xFactory = new XMLSdPropHdlFactory( rExport.GetModel(), rExport );
     UniReference < XMLPropertySetMapper > xMapper = new XMLShapePropertySetMapper( xFactory );
+    rExport.GetTextParagraphExport(); // get or create text paragraph export
     SvXMLExportPropertyMapper* pResult =
         new XMLShapeExportPropertyMapper( xMapper, rExport );
     // chain text attributes
@@ -1257,6 +1258,7 @@ const rtl::Reference< XMLTableExport >& XMLShapeExport::GetShapeTableExport()
     {
         rtl::Reference< XMLPropertyHandlerFactory > xFactory( new XMLSdPropHdlFactory( mrExport.GetModel(), mrExport ) );
         UniReference < XMLPropertySetMapper > xMapper( new XMLShapePropertySetMapper( xFactory.get() ) );
+        mrExport.GetTextParagraphExport(); // get or create text paragraph export
         rtl::Reference< SvXMLExportPropertyMapper > xPropertySetMapper( new XMLShapeExportPropertyMapper( xMapper, mrExport ) );
         mxShapeTableExport = new XMLTableExport( mrExport, xPropertySetMapper, xFactory );
     }