Keycloak as IDP, don't get e-mail as a parameter

I’m setting up keycloak as IDP to identify users on the atlassian portal as it written here Configure SAML single sign-on with an identity provider | Atlassian Support The Get request to the keycloak looks like


and it contains user email address at the login_hint parameter. But after redirect to the keycloak login page field “e-mail” is empty. Login page and keycloak SAML settings are default. Any idea how to fix it?