diff --git a/web/src/lib/utils/tree-utils.ts b/web/src/lib/utils/tree-utils.ts
index 267bb2eec7..64b51158c4 100644
--- a/web/src/lib/utils/tree-utils.ts
+++ b/web/src/lib/utils/tree-utils.ts
@@ -62,8 +62,16 @@ export class TreeNode extends Map<string, TreeNode> {
       const child = this.values().next().value!;
       child.value = joinPaths(this.value, child.value);
       child.parent = this.parent;
-      this.parent.delete(this.value);
-      this.parent.set(child.value, child);
+
+      const entries = Array.from(this.parent.entries());
+      this.parent.clear();
+      for (const [key, value] of entries) {
+        if (key === this.value) {
+          this.parent.set(child.value, child);
+        } else {
+          this.parent.set(key, value);
+        }
+      }
     }
 
     for (const child of this.values()) {