Privileged API user cannot edit CoPerson

A privileged CO API user cannot edit a CoPerson object to change the status.

This invocation

(
[method] => PUT
[uri] => Array
(
[scheme] => http
[host] => 127.0.0.1
[user] => co_2.rest_user_01
[pass] => XXXXXXXX
[path] => /registry/co_people/2.json
)

[header] => Array
(
[Content-Type] => application/json
)

[body] => {"RequestType":"CoPeople","Version":"1.0","CoPeople":[

{"Version":"1.0","CoId":"2","Status":"Expired"}

]}
)

returns a 401