Form dropdown lengths limited to PAGINATE_COUNT

[jeremystretch]

Environment

• Python version: 3.5.2
• NetBox version: 2.4.5

Steps to Reproduce

1. Set PAGINATE_COUNT = 50 in configuration.py and restart the NetBox service.
2. Create VLANs 100 through 199.
3. Attempt to create a new prefix and assign it to one of the VLANs.

Expected Behavior

All of the VLANs should appear in the list.

Observed Behavior

Only the first 50 VLANs are listed.

This is a regression introduced in 3a88e43 while attempting to resolve #2406. Removing the hard-coded limit of 1000 results in the API returning only default page length.

Temporary workaround: Set PAGINATE_COUNT = 1000 in configuration.py and restart the NetBox service. Note that this may result in increased load on the server.