[Request] filter `default` in db table sam_zones

Hi,
this is a request for better debug, can table sam_zones fields z_single_ct, z_cats, z_authors, z_archive_ct and z_taxes be filtered by default settings? So, if there are no setting, I can see: a:0:{} in DB

Thanks a lot,

Davide

PS. if I edit db in this manner, sam already works

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