Index: src_plugins/io_pcb/file.c
===================================================================
--- src_plugins/io_pcb/file.c	(revision 15398)
+++ src_plugins/io_pcb/file.c	(revision 15399)
@@ -1100,8 +1100,12 @@
 	if (Name != NULL)
 		pcb_attribute_put(&p->Attributes, "name", Name);
 
-	if (yysubc_bottom)
+	if (yysubc_bottom) {
+		pcb_data_t *old_hack = pcb_pstk_data_hack;
+		pcb_pstk_data_hack = subc->parent.data;
 		pcb_pstk_mirror(p, 0, 1);
+		pcb_pstk_data_hack = old_hack;
+	}
 
 	return p;
 }