MAC applied every puppet agent run

[FATruden]

Hi, spacedog.

Thank you for this module! But, I have one problem with it.

MAC addres of cobbler-systems applied every puppet agent run:

# cobbler system report --name some_node

Interface =====                : eth0
Bonding Opts                   : 
Bridge Opts                    : 
CNAMES                         : []
InfiniBand Connected Mode      : False
DHCP Tag                       : 
DNS Name                       : 
Per-Interface Gateway          : 172.20.32.1
Master Interface               : 
Interface Type                 : 
IP Address                     : 172.20.32.108
IPv6 Address                   : 
IPv6 Default Gateway           : 
IPv6 MTU                       : 
IPv6 Prefix                    : 
IPv6 Secondaries               : []
IPv6 Static Routes             : []
MAC Address                    : 78:2b:cb:47:8e:09
Management Interface           : False
MTU                            : 
Subnet Mask                    : 255.255.255.0
Static                         : False
Static Routes                  : []
Virt Bridge                    : 

# puppet agent -t

Notice: /Stage[c2_cobbler]/C2_cobbler::System/Cobbler_system[node.domain]/interfaces: eth0: mac_addres:  -> 78:2b:cb:47:8e:09
Info: /Stage[c2_cobbler]/C2_cobbler::System/Cobbler_system[node.domain]: Scheduling refresh of Class[C2_cobbler::Cobbler_sync]