Post to /api/ipam/prefixes/<int:pk>/available-ips/ is slow when the prefix is large

[tobiasge]

NetBox version

v3.6.3

Python version

3.11

Steps to Reproduce

1. Create large prefix (e. g. 10.0.0.0/8)
2. Request an IP from the created prefix with:
   curl -v -X POST -d '{}' -H 'Content-Type: application/json' -H 'Accept: application/json' -H 'Authorization: Token REDACTED' http://localhost:8787/api/ipam/prefixes/$idOfPrefixFromStep1/available-ips/

Expected Behavior

Get a fast response

Observed Behavior

Response takes over 30 seconds

[tobiasge]

I think the bug is caused by the missing limit parameter for get_available_objects in AvailableObjectsView.post in netbox/ipam/api/views.py