FINALLY FIXED THE PROBLEM - was using set instead of set_single, so it set it's child as well, causing the type loop. Also, the binding replace child evaluated the parameters first, changing t's parent before t->parent->replace_child happened

.gitignore

@@ -8,6 +8,9 @@ stats
 *.swn
 *.swo
 *.swl
+*.swi
+*.swj
+*.swk
 *.png
 *krakout*
 kraklist.txt