We accept half a dozen different authentication mechanisms for
Git over HTTP. Fairly high in the list we were checking user
password, which would also query LDAP. In the case of LFS,
OAuth tokens or personal access tokens, we were unnecessarily
hitting LDAP when the authentication will not succeed. This
was causing some LDAP/AD systems to lock the account. Now,
user password authentication is the last mechanism tried since
it's the most expensive.
