:art: Revert fix and clean

diff --git a/ast b/ast
index fccf315b0941972ad1aec7e9470bac3bdde83497..af1930729d920a525e934068287a17b56b95dccc 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit fccf315b0941972ad1aec7e9470bac3bdde83497
+Subproject commit af1930729d920a525e934068287a17b56b95dccc