Unable to delete a device with a circuit terminated to an interface

[abrahamvegh]

NetBox version

2.11.3

Python version

3.7

Steps to Reproduce

1. Create a site
2. Create a circuit located at that site
3. Terminate both ends of the circuit at that site
4. Create a device with at least two interfaces
5. Terminate both ends of the circuit into interfaces on that device
6. Attempt to delete the device

Expected Behavior

The device is deleted.

Observed Behavior

The complete exception is provided below:

<class 'AttributeError'>

type object 'NoneType' has no attribute '_meta'

[jeremystretch]

I'm not able to replicate this following the steps provided. Please enable debugging and post the complete stack trace for analysis.

[abrahamvegh]

Updated reproduction steps, sorry about that, this was difficult for me to reproduce in the first place. I confirmed the steps provided do trigger the exception on the public demo instance as well as on my production instance.