using adobe-only-user-list does not work

[Luci2015]

tried it on version 2.3rc4.
I think it stopped working since the invocation_defaults got added.
The invocation_defaults also provides this option, but it keeps the 'users' argument as well, so it conflicts.

In v2.2.2 this works.

[adorton-adobe]

Thank you for the report. I will take a look.

[adorton-adobe]

Fixed by #370