#5237 Fix for incorrect handling of self loops with elk layout

2025-08-15 06:19:24 +02:00 · 2024-06-10 13:50:06 +02:00
parent 7fbe1661ec
commit ea69d26a60
1 changed files with 5 additions and 0 deletions
--- a/packages/mermaid-layout-elk/src/find-common-ancestor.ts
+++ b/packages/mermaid-layout-elk/src/find-common-ancestor.ts
@@ -7,6 +7,11 @@ export const findCommonAncestor = (id1: string, id2: string, treeData: TreeData)
  const { parentById } = treeData;
  const visited = new Set();
  let currentId = id1;
+
+  if (id1 === id2) {
+    return parentById[id1] || 'root';
+  }
+
  while (currentId) {
    visited.add(currentId);
    if (currentId === id2) {