default bucket cannot be created on port 11211, must specify a different port

[root@ip-10-127-157-49 ~]# /opt/membase/bin/cli/membase bucket-create -c 127.0.0.1 -u Administrator -p password --bucket=default --bucket-type=membase --bucket-port=11211 --bucket-ramsize=200 --bucket-replica=1
ERROR: unable to bucket-create (400) Bad Request
ERROR: command: bucket-create: 127.0.0.1:8091, 2
[root@ip-10-127-157-49 ~]# /opt/membase/bin/cli/membase bucket-create -c 127.0.0.1 -u Administrator -p password --bucket=default --bucket-type=membase --bucket-port=11212 --bucket-ramsize=200 --bucket-replica=1
SUCCESS: bucket-create

The default bucket however ends up on port 11211.

This is how is should work:
1. --bucket=default --bucket-type=membase --bucket-port=11211 --bucket-ramsize=200 --bucket-replica=1
Success
2. --bucket=default --bucket-type=membase --bucket-ramsize=200 --bucket-replica=1
Success
3. --bucket=default --bucket-type=membase --bucket-port=11212 --bucket-ramsize=200 --bucket-replica=1
Error: default bucket must be on 11211
4. -bucket=default --bucket-type=membase --bucket-port=11211 --bucket-password="password"-bucket-ramsize=200 --bucket-replica=1
Error: default bucket cannot have a password