"Read Only Admin" user is able to create documents in couchbase bucket using cbimport tool

Steps to Repro:

1) Created a cluster on Enterprise Edition 5.0.0 build 3509

2) Created a "Read Only Admin" user on Security tab from UI

3) Ran the cbimport tool to create documents.

[root@node1-cb450-centos7 bin]# ./cbimport json -c 10.112.150.101 -u temp -p password -b default -f list -d file://list.json -g key::#UUID# 

Json `file://list.json` imported to `http://10.112.150.101:8091` successfully

[root@node1-cb450-centos7 bin]#

Since the user is a "Read Only Admin" he should not be allowed to create any documents.