[Observium] Intentionally adding a duplicate device

Hello,

Previously I was able to add a duplicate entry for a device. At the time, it seemed like the easiest way to work around IOS-XR not being able to pull BGP session information inside a VRF from the default snmp context. Creating a separate SNMP context on the box for the VRF(s) in question, with a different community for each would let the duplicate entries poll the BGP session info from within whatever VRF that context included.

Now, when I try to add a duplicate it fails due to pre-existing sysName, snmpEngineID and entPhysicalSerialNum.

Is there a way to add duplicates anymore, or perhaps a different way to collect BGP session info from within VRF (in addition to the global table)?

Thanks in advance.