- fixed: When extracting a MiniBSP for polyobject rendering, the parent subsector must copy all its relevant properties to the children.

The sections pointer was not copied here.

src/p_sectors.cpp

@@ -2434,6 +2434,7 @@ void subsector_t::BuildPolyBSP()
 	for (unsigned int i = 0; i < BSP->Subsectors.Size(); ++i)
 	{
 		BSP->Subsectors[i].sector = sector;
+		BSP->Subsectors[i].section = section;
 	}
 }