From b42af302c54d56914595265f26b725fb373c96b3 Mon Sep 17 00:00:00 2001
From: newbyvector <vectorse@126.com>
Date: Thu, 13 Jul 2023 14:49:34 +0800
Subject: [PATCH] fix: unembed edge only when have new parent

---
 packages/x6/src/model/edge.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/x6/src/model/edge.ts b/packages/x6/src/model/edge.ts
index b11c4b98aa1..1f7ce8b856a 100644
--- a/packages/x6/src/model/edge.ts
+++ b/packages/x6/src/model/edge.ts
@@ -793,7 +793,7 @@ export class Edge<
 
     // Unembeds the edge if source and target has no common
     // ancestor or common ancestor changed
-    if (prevParent && (!newParent || newParent.id !== prevParent.id)) {
+    if (prevParent && newParent && newParent.id !== prevParent.id) {
       prevParent.unembed(this, options)
     }