diff -r 30c20aac31b6 -r 461d256e32c6 src/kv_list.c
--- a/src/kv_list.c	Wed Sep 24 23:51:04 2025 +0200
+++ b/src/kv_list.c	Wed Sep 24 23:52:36 2025 +0200
@@ -650,6 +650,9 @@
 }
 
 int cx_kv_list_insert(CxList *list, size_t index, CxHashKey key, void *value) {
+    // assume we are losing the sorted property
+    list->collection.sorted = false;
+
     cx_kv_list *kv_list = (cx_kv_list*)list;
 
     // reserve memory in the map