Steps to reproduce:

• Be logged-in.
• Have an account with the appropriate local or global permissions: createaccount, ipblock-exempt and globalblock-exempt (e.g. an account with sysop permissions).
• Your IP address, or IP range is locally blocked with the "account creation disabled" flag on.
• Now attempt to create an account for somebody else (that is, while logged with the privileged account) using Special:CreateAccount.

Actual results:
MediaWiki prevents the privileged account from creating that account for a third-party, and shows the "You're blocked" message. One would expect that at least the ipblock-exempt allowed this as well as editting (ipblock-exempt: "Bypass IP blocks, auto-blocks and range blocks").

Expected/Desired results:
MediaWiki allowed said user with the appropriate permissions to create that account for a third party.

Notes:

• MediaWiki 1.36.0-wmf.22 (rMWf77db54ba502) --18:00, 21 December 2020.
• CentralAuth: e162c98 -- 07:40, 14 December 2020.