RHEV 3.2 API changing IP on hypervisor bond sub-int reqs re-passing bond opts

Issue

Using the RHEV 3.2 python SDK/API(assuming the later) to change the IP addressing on a hypervisor bonding NIC sub-interface causes the bonding NIC and slave NIC configs to be re-written/re-configured(understandably so, especially if we attach a new sub-interface with a larger MTU). If the desired bonding options for the bonding NIC aren't passed with the sub-interface IP settings, the bonding NIC options will revert to the default settings. This shouldn't be necessary and it requires that one detect that they're working with a sub-interface and capture the existing bonding options to submit with the IP change.

This is the sub-interface IP address changing sequence that's being used:

host = API().hosts.get(name=hostName)
nic = host.nics.get(name=nicName)
nic.set_boot_protocol("static")
nic.set_ip(params.IP(address=ip, netmask=mask, gateway=gw))
nic = nic.update()

The current behavior requires us to also do something like this prior to the update():

rem = re.match(r"^(bond\d+)\.\d+$", nic.name)
parentNicName = rem.group(1)
parentNic = host.nics.get(name=parentNicName)
nic.set_bonding(parentNic.bonding)