What is the problem?
For logged in users with autoblocks against their users, we are no longer setting block cookies on RedirectSpecialPage.
The change was introduced in T233594.
Steps to reproduce problem
On wikis with $wgCookieSetOnAutoblock set to true (should be on most production and beta wikis).
- Create an autoblock against $user (i.e. in Special:Block check the option "Automatically block the last IP address used by this user...")
- Login as $user
- Navigate to Special:MyContributions
Expected behavior: A cookie called something like enwikiBlockID is set
Observed behavior: The block cookie is not set