Cable Trace not working for split cables with multiple endpoints

[arthanson]

Deployment Type

NetBox Cloud

NetBox Version

v3.7.7

Python Version

3.8

Steps to Reproduce

1. Create a Device switch with multiple interfaces
2. Create a Device that is a patch panel with multiple front ports
3. Add a single cable that has multiple connections going from the interfaces to the front ports (see screenshot)
4. View the cable path

Expected Behavior

The cable path trace should show the cable that has multiple splits at both ends (see screenshot below)

Observed Behavior

The cable path trace is split at the interfaces but is aggregated together to show only a single connection to the first front-port.

[arthanson]

@Moehritz would you possibly be available to take a look at this? It looks like the changes to draw_fanin from before potentially broke this.