Relationship filterset filtering with concrete fields raises 500 error

[lampwins]

Environment

• Nautobot version (Docker tag too if applicable): 1.5.0
• Python version: 3.9
• Database platform, version: postgres
• Middleware(s):

Steps to Reproduce

1. Create a one-to-many relationship from vlan to device
2. Populate this relationship on at least one device record
3. In the device list view, filter by the relationship vlan value and the manufacturer of a device

Expected Behavior

The result set to be filtered by both values

Observed Behavior

500 error

<class 'AssertionError'>

Cannot combine a unique query with a non-unique query.