Steps to replicate the issue (include links if applicable):
- Open Commons in private mode.
- Send yourself a message.
- Open Wikipedia in normal mode (logged in to your account).
- Open notifications.
- Mark as read.
- Refresh page.
What happens?:
Doesn't work. Notification is still unread.
What should have happened instead?:
Mark as read (or show an error).
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):
