Description of problem:


Version-Release number of selected component (if applicable):
subscription management server: 2.0.21-1
subscription management rules: 5.20
subscription-manager: 1.18.8-1.el6
python-rhsm: 1.18.6-1.el6


How reproducible:
3/3

Steps to Reproduce:
1.set autobinddisabled to "true" for owner admin
2.Create two activationkeys say actkey1 with "auto-attach" enabled and actkey2 with "auto-attach" disabled
3.try to register using both keys
# subscription-manager register --activationkey=actkey1 --org=admin --activationkey=actkey2

Actual results:
registration failed with message "Could not register unit with key enabling auto-attach. Auto-attach is disabled for org 'admin'."

Expected results:
if any of the key is passed then the user should be able to register the client successfully 

Additional info:
providing links to some old discussion about activationkey rules for reference : http://post-office.corp.redhat.com/archives/chainsaw/2014-November/msg00199.html

recent bug comment : https://bugzilla.redhat.com/show_bug.cgi?id=1383927#c1