try to clear modified later

worker.diff

diff --git a/src/core/worker.js b/src/core/worker.js
index d2c680c53..482c216ac 100644
--- a/src/core/worker.js
+++ b/src/core/worker.js
@@ -521,6 +521,9 @@ class WorkerMessageHandler {
       annotationStorage,
       filename,
     }) {
+      const storageValues = annotationStorage
+        ? annotationStorage.getAll()
+        : null;
       pdfManager.requestLoadedStream();
       const promises = [pdfManager.onLoadedStream()];
       const document = pdfManager.pdfDocument;
@@ -528,7 +531,7 @@ class WorkerMessageHandler {
         promises.push(
           pdfManager.getPage(pageIndex).then(function (page) {
             const task = new WorkerTask(`Save: page ${pageIndex}`);
-            return page.save(handler, task, annotationStorage);
+            return page.save(handler, task, storageValues);
           })
         );
       }
@@ -572,6 +575,7 @@ class WorkerMessageHandler {
           };
         }
         xref.resetNewRef();
+        annotationStorage.setUnmodified();
 
         return incrementalUpdate(stream.bytes, newXrefInfo, newRefs);
       });
diff --git a/src/display/api.js b/src/display/api.js
index 17f4eca93..c581b9296 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -2536,11 +2536,9 @@ class WorkerTransport {
   }
 
   saveDocument(annotationStorage) {
-    annotationStorage.setUnmodified();
     return this.messageHandler.sendWithPromise("SaveDocument", {
       numPages: this._numPages,
-      annotationStorage:
-        (annotationStorage && annotationStorage.getAll()) || null,
+      annotationStorage,
       filename: this._fullReader.filename,
     });
   }