[Koha] Checkbox «Flagged» on subfield visibility framework setup

[Pablo Bianchi]

Hi!

Even I read Koha manual
<http://translate.koha-community.org/manual/master/en/catadmin.html#marcbibframeworks>
(2.4.1.4. Edit Framework Subfields > Advanced constraint values >
Visibility) and bug #9894, but it isn't clear to me what a "flagged"
subfield means.

Regards!
Pablo