exception when editing device in chassis bay v2.10-beta2

[ThomasADavis]

Environment

Python version: 3.6.8
NetBox version: 2.10-beta2

Steps to Reproduce

1. import from an older version of the db (in this case, it's from v2.8.9)
2. go to an existing chassis type device.
3. try to edit the device in a chassis bay.

Expected Behavior

takes me to device

Observed Behavior

an exception appears:

<class 'django.urls.exceptions.NoReverseMatch'>

Reverse for 'device' with keyword arguments '{'pk': ''}' not found. 1 pattern(s) tried: ['dcim\/devices\/(?P[0-9]+)\/$']

[jeremystretch]

Thank you for helping test the beta! Your contribution is very much appreciated!