ensure all notifications are deleted

Author: fredcw

files/usr/share/cinnamon/applets/[email protected]/applet.js

@@ -235,11 +235,14 @@ class Notifications {
         this._appGroupList.forEach(appGroup => {
             if (!appGroup.groupState || appGroup.groupState.willUnmount) return;
             if (appId === appGroup.groupState.appId) {
-                appGroup.notifications.forEach(notification => {
-                    if (!notification._destroyed) {
-                        notification.destroy(NotificationDestroyedReason.DISMISSED);
+                let i = 0;
+                while (appGroup.notifications[i]) {
+                    if (!appGroup.notifications[i]._destroyed) {
+                        appGroup.notifications[i].destroy(NotificationDestroyedReason.DISMISSED);
+                    } else {
+                        i++;
                     }
-                });
+                }
                 appGroup.notifications = [];
                 this.updateNotificationsBadge(appGroup);
             }