diff --git a/packages/designer/src/project/project.ts b/packages/designer/src/project/project.ts
index efa5fef89..2c16c25b0 100644
--- a/packages/designer/src/project/project.ts
+++ b/packages/designer/src/project/project.ts
@@ -200,10 +200,11 @@ export class Project {
     if (isDocumentModel(doc)) {
       return doc.open();
     } else if (isPageSchema(doc)) {
-      const foundDoc = this.documents.find(curDoc => curDoc?.rootNode?.id && curDoc?.rootNode?.id === doc?.id);
-      if (foundDoc) {
-        foundDoc.remove();
-      }
+      // 暂时注释掉，影响了 diff 功能
+      // const foundDoc = this.documents.find(curDoc => curDoc?.rootNode?.id && curDoc?.rootNode?.id === doc?.id);
+      // if (foundDoc) {
+      //   foundDoc.remove();
+      // }
     }
 
     doc = this.createDocument(doc);
diff --git a/packages/rax-simulator-renderer/package.json b/packages/rax-simulator-renderer/package.json
index 021e0f1a3..048a37e4a 100644
--- a/packages/rax-simulator-renderer/package.json
+++ b/packages/rax-simulator-renderer/package.json
@@ -57,5 +57,5 @@
   "publishConfig": {
     "registry": "https://registry.npm.alibaba-inc.com"
   },
-  "homepage": "https://unpkg.alibaba-inc.com/@ali/lowcode-rax-simulator-renderer@0.13.1-3/build/index.html"
+  "homepage": "https://unpkg.alibaba-inc.com/@ali/lowcode-rax-simulator-renderer@0.13.1-4/build/index.html"
 }