Only Username appears on LDAP tab when "allow_username_or_email_login: true"


In my /etc/gitlab/gitlab.rb I configured allow_username_or_email_login: true.

After gitlab-ctl reconfigure and gitlab-ctl restart on LDAP tab in sign-in page appears only Username instead Username or email as expected. My browser cache is clear.
Users sign-in successfully with username but they don’t know that email login is possible too.

Any suggestions in this case?

GitLab CE 13.0.6 (5aa982e01ea) [Omnibus]
CentOS Linux release 8.1.1911 (Core)

Best regards,