There's a false behavior when working with custom fields.

I defined a custom field and set the following flags to false (not checked):

Required On Report [ ]
Required On Update [ ]
Required On Resolve [ ]
Required On Close [ ]

When I have a look in the database these colums (require_report, require_update, require_resolved, require_closed) are set to "0" for this custom field.

Now when I report an issue, the error "A necessary field <custom-field-name> was empty. Please recheck your inputs."

Bug or misconfiguration?