Paging not working for Get Roles REST API... defect?

I'm using the following REST endpoint.

curl GET 'mycommunity.com/.../roles.json

Regardless of what I set the PageSize or PageIndex parameter to, it always returns all(?) Roles and the paging params are ignored.  I've tested this in several Telligent 11 environments, so it doesn't appear to be instance specific.

Based on the documentation paging should work, so it appears to be either a code defect or a documentation defect.

https://community.telligent.com/community/11/w/api-documentation/64843/list-role-rest-endpoint

Thanks.