Description of problem:







try 
the same error and zonegroup default is part of the staging period


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.start the radosgw without any multisite configuration (default zonegroup and zone will be created)
2.create a realm , set it as default.
3.update zonegroup default and zone default using set commands 
(this will cause the realm id to change)
4. update and commit the period
5. create a new master zonegroup zg0 and a new zg0zo that will the master of zg0
6. radosgw-admin period update --commit (error two master zonegroups)
7. remove zone default from default zonegroup and delete it
8. period update

Actual results:
error two master zonegroups and zonegroup default is part of the staging period

Expected results:
success

Additional info:
workround:
delete .rgw.root: rados purge .rgw.root --yes-i-really-really-mean-it
create a new configuration when the gateway is down:
create a new realm and set it as default
radosgw-admin zonegroup set < json (with the new realm id) 
radosgw-admin zoneg set < json (with the new realm id)
set zonegroup and zone as default
period update --commit