[Satellite6] Specifying a subnet name within the interface options of a 'hammer host create' command results in an error

Issue

• Specifying a subnet name within the interface options of a 'hammer host create' command results in an error

# hammer subnet list
---|---------------|---------------|--------------
ID | NAME          | NETWORK       | MASK         
---|---------------|---------------|--------------
3  | Corporate_x   | 192.168.118.0 | 255.255.255.0
4  | Corporate_y   | 192.168.108.0 | 255.255.255.0
---|---------------|---------------|--------------

# hammer host create --name "bne-tst" --hostgroup "BNE Test - RHEL7" --ask-root-password yes --interface="primary=true, provision=true, mac=00:01:02:03:04:05, ip=192.168.118.85, subnet=Corporate_x"
Enter the root password for the host: 
Could not create the host:
  Subnet(#75847520) expected, got String(#7677800)