diff -r 62d3aecc5bb7 -r 4f02995ce44e src/cx/tree.h
--- a/src/cx/tree.h	Wed Feb 21 18:53:55 2024 +0100
+++ b/src/cx/tree.h	Mon Feb 26 21:07:23 2024 +0100
@@ -90,6 +90,11 @@
      */
     void *node;
     /**
+     * Stores a copy of the next pointer of the visited node.
+     * Allows freeing a node on exit without corrupting the iteration.
+     */
+    void *next;
+    /**
      * Internal stack.
      * Will be automatically freed once the iterator becomes invalid.
      *