[Koha] authority plugin & indicators

Hello! While adding/editing a bibliographic record, when I use the authority plugin and insert the content of an authority record into a bibliographic record (e.g. PERSO_NAME --> bibliographic 100 field), the indicators doesn't copy (i.e. ind1=1 for surname in authority 100 field doesn't appear in bibliographic). What am I doing wrong? Or this is the way KOHA behaves? If so, shouldn't this behavior be modified? Thanks in advance. Cheers! Janusz