fdo#80020 Fix regression for style sheet inheritance

The inheritance relationship of styles in Draw was lost when writing files.

Change-Id: I81588a031bf4c649338fad9b7342fbbe11df9aef
Reviewed-on: https://gerrit.libreoffice.org/10309Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>

sd/source/core/stlsheet.cxx

@@ -921,7 +921,7 @@ void SAL_CALL SdStyleSheet::setParentStyle( const OUString& rParentName  ) throw
 
     if( !rParentName.isEmpty() )
     {
-        SfxStyleSheetIteratorPtr aSSSI = boost::make_shared<SfxStyleSheetIterator>(mxPool.get(), nFamily, SFX_STYLE_FAMILY_ALL);
+        boost::shared_ptr<SfxStyleSheetIterator> aSSSI = boost::make_shared<SfxStyleSheetIterator>(mxPool.get(), nFamily);
         for (SfxStyleSheetBase *pStyle = aSSSI->First(); pStyle; pStyle = aSSSI->Next())
         {
             // we hope that we have only sd style sheets