Steps to Reproduce:
- Attempt to save comment on Meta
- see message “Sorry! We could not process your edit due to a loss of session data.
You might have been logged out. Please verify that you're still logged in and try again. If it still does not work, try logging out and logging back in, and check that your browser allows cookies from this site.”
*Attempt to log out
*see message “Invalid CSRF token”
Problem reported on Wikidata Telegram as also occurring on Wikidata and en Wikipedia.