Nextcloud.occ config:app:set user_saml doesnt work anymore

I use to setup saml automatically, but it doesnt work anymore as I remember it to work before:

some commands work, some don’t.
this doesn’t for example:
nextcloud.occ config:app:set user_saml general-idp0_display_name --value SSO

it ouptuts:
Config value general-idp0_display_name for app user_saml set to SSO

but it doesnt really apply anything there.

since v5.0.0:

php occ saml:config:set --help