UFAL/There are users in eperson who are not in user_registration

[milanmajchrak]

The users was added via CLI - update script class

ufal#1086

PR: #463

Test:

• Create an user as administrator USING UI and that user should be added into user_registration table.

[Paurikova2]

Testing notes: I have no access to backend (user registration table). I cannot test this issue.