From a22a6e9a5fbf9458c02631af735e5833853bafe3 Mon Sep 17 00:00:00 2001
From: ZhouYanCong <1169480185@qq.com>
Date: Sun, 25 May 2025 15:29:32 +0800
Subject: [PATCH 1/2] fix: G6-#7149

---
 src/graph.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/graph.ts b/src/graph.ts
index 78a9dfd..aae61f8 100644
--- a/src/graph.ts
+++ b/src/graph.ts
@@ -659,7 +659,9 @@ export class Graph<
     const oldSource = edge.source;
     const newSource = source;
     this.outEdgesMap.get(oldSource)!.delete(edge);
-    this.bothEdgesMap.get(oldSource)!.delete(edge);
+    if (edge.target != newSource && edge.source != edge.target) {
+      this.bothEdgesMap.get(oldSource)!.delete(edge);
+    }
     this.outEdgesMap.get(newSource)!.add(edge);
     this.bothEdgesMap.get(newSource)!.add(edge);
     edge.source = source;
@@ -684,7 +686,9 @@ export class Graph<
     const oldTarget = edge.target;
     const newTarget = target;
     this.inEdgesMap.get(oldTarget)!.delete(edge);
-    this.bothEdgesMap.get(oldTarget)!.delete(edge);
+    if (edge.source != newTarget &&  edge.source != edge.target) {
+      this.bothEdgesMap.get(oldTarget)!.delete(edge);
+    }
     this.inEdgesMap.get(newTarget)!.add(edge);
     this.bothEdgesMap.get(newTarget)!.add(edge);
     edge.target = target;

From 89af6df37f9ac7e71347afaab4adca51e0a0f02a Mon Sep 17 00:00:00 2001
From: ZhouYanCong <1169480185@qq.com>
Date: Sun, 25 May 2025 20:36:31 +0800
Subject: [PATCH 2/2] fix: G6-#7149 - simplify condition

---
 src/graph.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/graph.ts b/src/graph.ts
index aae61f8..1ceb599 100644
--- a/src/graph.ts
+++ b/src/graph.ts
@@ -659,7 +659,7 @@ export class Graph<
     const oldSource = edge.source;
     const newSource = source;
     this.outEdgesMap.get(oldSource)!.delete(edge);
-    if (edge.target != newSource && edge.source != edge.target) {
+    if (edge.source != edge.target) {
       this.bothEdgesMap.get(oldSource)!.delete(edge);
     }
     this.outEdgesMap.get(newSource)!.add(edge);
@@ -686,7 +686,7 @@ export class Graph<
     const oldTarget = edge.target;
     const newTarget = target;
     this.inEdgesMap.get(oldTarget)!.delete(edge);
-    if (edge.source != newTarget &&  edge.source != edge.target) {
+    if (edge.source != edge.target) {
       this.bothEdgesMap.get(oldTarget)!.delete(edge);
     }
     this.inEdgesMap.get(newTarget)!.add(edge);