FileDisplayActivity: also update sort group after browsing up

Signed-off-by: Álvaro Brey <alvaro.brey@nextcloud.com>

app/src/main/java/com/owncloud/android/ui/activity/FileDisplayActivity.java

@@ -98,6 +98,7 @@ import com.owncloud.android.ui.asynctasks.FetchRemoteFileTask;
 import com.owncloud.android.ui.dialog.SendShareDialog;
 import com.owncloud.android.ui.dialog.SortingOrderDialogFragment;
 import com.owncloud.android.ui.dialog.StoragePermissionDialogFragment;
+import com.owncloud.android.ui.events.ChangeMenuEvent;
 import com.owncloud.android.ui.events.SearchEvent;
 import com.owncloud.android.ui.events.SyncEventFinished;
 import com.owncloud.android.ui.events.TokenPushEvent;
@@ -1066,6 +1067,7 @@ public class FileDisplayActivity extends FileActivity
                 showSortListGroup(true);
                 resetTitleBarAndScrolling();
                 setDrawerAllFiles();
+                EventBus.getDefault().post(new ChangeMenuEvent()); // for OCFileListFragment to update sort menu
             }
         } else if (leftFragment instanceof PreviewTextStringFragment) {
             createMinFragments(null);