fixup: do not try to sync saved state when not in sync mode

Co-authored-by: David Larlet <david@larlet.fr>

umap/static/umap/js/modules/sync/engine.js

@@ -127,10 +127,13 @@ export class SyncEngine {
   }
 
   saved() {
-    this.transport.send('SavedMessage', {
+    if (this.offline) return
-      sender: this.peerId,
+    if (this.transport) {
-      lastKnownHLC: this._operations.getLastKnownHLC(),
+      this.transport.send('SavedMessage', {
-    })
+        sender: this.peerId,
+        lastKnownHLC: this._operations.getLastKnownHLC(),
+      })
+    }
   }
 
   _send(inputMessage) {