Administrator is ready only when cluster is set to preview mode via couchbase-cli

To mimic the bug; please perform the following :

1. create a cluster - a one node cluster with all the services but analytics was created 
2. from the terminal log onto the node and execute the following statement :couchbase-cli enable-developer-preview --enable -c localhost:8091 -u Administrator -p password

1. log into the UI as admin
2. go to the server tab and look at the node details 

It was observed that the admin did not have permissions to failover or delete or initiate a rebalance. The admin was also in preview mode. 

A screenshot of the same is attached below.