Change Log list incorrectly displays cable creation

[miaow2]

Environment

• Python version: 3.6.8
• NetBox version: 2.9.4

Steps to Reproduce

1. Create cable
2. Go to extras/changelog/ page
3. Object column displays #None for cable
   

Expected Behavior

Should display #{id} id of cable

Observed Behavior

Object column displays #None for cable