Ok, this actually may be a bug. If there’s no ideas on this, too, i will figure out how to file a bug.
when i hide the ’create/edit document’ tab with an FC-rule, the tab actually is hidden, but the tab’s content (id, template, pagetitle,...) is still visible, when the form is rendered. it vanishes when i click another tab and then cannot be called again (wish of course is correct).
I then went ahead and hid all fields in this tab with single rules and discovered that the parent-resource field can also not be hidden. When i then tried to change the field label, this actually threw an error (B is null) in modext-min.js.
so maybe the first problem is also caused by the parent field?
@itWilllBeOK
