When I click on the Mediawiki account button, the system asks me to provide permission to 'phabricator-production'. Then, back at Phabricator, it lists my Mediawiki account as an 'external account', offers me to create some other account, and says that my username and e-mail are already in use. This is not surprising, because I had used Phabricator under my normal Wikimedia account many times. What has changed? What to do now?
Topic on Talk:Phabricator/Help
The account https://phabricator.wikimedia.org/p/atsirlin/ exists. What is the exact dialog / text displayed when you are "back at Phabricator"?
OK, solved. It looks like I always used the LDAP account without being aware of that.