Filtering for uploaded resources on staging gives mixed results

What the title says! I have only been able to do this on staging, but if you refine your search criteria in the resource search box(es) to "uploaded" resources only, you do get uploaded materials, but you also get quite a few generated results! Switching to showing only generated results does not have this problem. Screenshots below.

This is work around-able, in that refining to "uploaded" and then clicking the "creator" header will bring all non-generated results to the top, _but_ you are then unable to do other searches (like wanting to only look at uploaded images, not zips, models, etc).