Index: src/SynTree/GcTracer.h
===================================================================
--- src/SynTree/GcTracer.h	(revision dbc2c2c1c5d8dcdec833f7bad119f889765fb5e8)
+++ src/SynTree/GcTracer.h	(revision bfc78119c41ed230f80fe0326923335e58b5a745)
@@ -36,8 +36,8 @@
 	void previsit( BaseSyntaxNode * node ) {
 		// skip tree if already seen
-		if ( node->mark == gc.mark ) {
-			visit_children = false;
-			return;
-		}
+		// if ( node->mark == gc.mark ) {
+		// 	visit_children = false;
+		// 	return;
+		// }
 
 		// mark node