diff --git a/packages/designer/src/document/document-model.ts b/packages/designer/src/document/document-model.ts
index 3a181d17e..d52ea21ab 100644
--- a/packages/designer/src/document/document-model.ts
+++ b/packages/designer/src/document/document-model.ts
@@ -86,7 +86,7 @@ export class DocumentModel {
   }
 
   get fileName(): string {
-    return this.rootNode?.getExtraProp('fileName')?.getAsString() || this.id;
+    return this.rootNode?.getExtraProp('fileName', false)?.getAsString() || this.id;
   }
 
   set fileName(fileName: string) {
diff --git a/packages/designer/src/document/history.ts b/packages/designer/src/document/history.ts
index a27e180b9..68cd2feda 100644
--- a/packages/designer/src/document/history.ts
+++ b/packages/designer/src/document/history.ts
@@ -43,21 +43,20 @@ export class History {
       if (this.asleep) return;
       untracked(() => {
         const log = currentSerialization.serialize(data);
-          if (this.session.isActive()) {
-            this.session.log(log);
-          } else {
-            this.session.end();
-            const lastState = this.getState();
-            const cursor = this.session.cursor + 1;
-            const session = new Session(cursor, log, this.timeGap);
-            this.session = session;
-            this.records.splice(cursor, this.records.length - cursor, session);
-            const currentState = this.getState();
-            if (currentState !== lastState) {
-              this.emitter.emit('statechange', currentState);
-            }
+        if (this.session.isActive()) {
+          this.session.log(log);
+        } else {
+          this.session.end();
+          const lastState = this.getState();
+          const cursor = this.session.cursor + 1;
+          const session = new Session(cursor, log, this.timeGap);
+          this.session = session;
+          this.records.splice(cursor, this.records.length - cursor, session);
+          const currentState = this.getState();
+          if (currentState !== lastState) {
+            this.emitter.emit('statechange', currentState);
           }
-        // }
+        }
       });
     }, { fireImmediately: true });
   }