fdo#60703: MSDraw filter: fix import of flags

DffPropSet::IsHardAttribute needs to handle flag properties specially
(regression from 44cfc7cb)

Change-Id: If5c6b9cfac58a787527cd132f7fc80d392b8e677

filter/source/msfilter/dffpropset.cxx

@@ -1269,7 +1269,8 @@ sal_Bool DffPropSet::IsHardAttribute( sal_uInt32 nId ) const
     sal_Bool bRetValue = sal_True;
     nId &= 0x3ff;
     if ( ( nId & 0x3f ) >= 48 ) // is this a flag id
-        bRetValue = ( mpPropSetEntries[ nId ].nComplexIndexOrFlagsHAttr & ( 1 << ( 0xf - ( nId & 0xf ) ) ) ) != 0;
+        bRetValue = (mpPropSetEntries[nId | 0x3f].nComplexIndexOrFlagsHAttr
+                        & (1 << (0xf - (nId & 0xf)))) != 0;
     else
         bRetValue = ( mpPropSetEntries[ nId ].aFlags.bSoftAttr == 0 );
     return bRetValue;