Pagination Query for 'ref' documents.

I like the way pagination query works. I use a lot. But when I tried to figure the way to filter from populate data. There is populate option in paginate but need to figure how can I use filter on populate fields, so I can get the result only which matches my populate's field.
If there is any solution please let me know.

The issue names pagination and populate behavior but no file, test, or entry point. Start by locating the repository's pagination query implementation and its populate handling, then clarify the expected filtering behavior before deciding what completion and regression coverage should look like.

Written by the indexing model from the issue text.