118414: applied patch, added forcing that SfxItemSet inside AttributeProperties::SetModel

 * found as LGPLv3-only fix at svn rev 1179654 (http://svn.apache.org/viewvc?view=revision&revision=1179654)

svx/source/sdr/properties/attributeproperties.cxx

@@ -479,8 +479,9 @@ namespace sdr
                 }
 
                 // each object gets the default Style if there is none set yet.
-                if(mpItemSet && !GetStyleSheet() && pNewModel && !pNewModel->IsLoading())
+                if(!GetStyleSheet() && pNewModel && !pNewModel->IsLoading())
                 {
+                    GetObjectItemSet(); // i#118414 force ItemSet to allow style to be set
                     SetStyleSheet(pNewModel->GetDefaultStyleSheet(), sal_True);
                 }
             }