diff -r 9e7f0db6a725 -r af0092d8789a src/tree.c
--- a/src/tree.c	Tue Aug 20 13:36:56 2024 +0200
+++ b/src/tree.c	Tue Aug 20 13:53:18 2024 +0200
@@ -194,7 +194,7 @@
             }
 
             // remember this node in case no child is suitable
-            if (ret_candidate < 0 || ret < ret_candidate) {
+            if (ret < ret_candidate) {
                 candidate = (void *) node;
                 ret_candidate = ret;
             }