when some inlined relation is set using cw_edited, its security shouldn't be checked.
It's currently checked anyway because upon modification of `cw_edited`,
`entity.skip_security` is updated to avoid security checking, but this is only
considered for attributes, not relations.
Closes #5477315
from cubicweb.schemas.base import in_group, CWSourceSchemaConfig
# copy __permissions__ to avoid modifying a shared dictionary
in_group.__permissions__ = in_group.__permissions__.copy()
in_group.__permissions__['read'] = ('managers',)
cw_for_source = CWSourceSchemaConfig.get_relation('cw_for_source')
cw_for_source.__permissions__ = {'read': ('managers', 'users'),
'add': ('managers',),
'delete': ('managers',)}