Fix workflow in 'Find User to Add Dialog' in language team : https://bugzilla.redhat.com/show_bug.cgi?id=998825

As described in https://bugzilla.redhat.com/show_bug.cgi?id=998825
- when a person is selected, "Translator" role is enabled by default
- when a role is selected, that entry (first column) will be selected as well.