`staging` repo has 0 collections, correctly show in ui collection list:
https://ci.cloud.redhat.com/api/automation-hub/_ui/v1/repo/staging/
But v3 collections list shows count as 5289 (there are only ~4800 collections in CI): https://ci.cloud.redhat.com/api/automation-hub/content/staging/v3/collections/

`published` repo has 4803 collections, correctly shown in ui collection list: https://ci.cloud.redhat.com/api/automation-hub/_ui/v1/repo/published/
But v3 collections list does a 504 timeout: https://ci.cloud.redhat.com/api/automation-hub/content/published/v3/collections/

Repos with smaller numbers of collections seem ok: https://ci.cloud.redhat.com/api/automation-hub/content/synctest/v3/collections/