Top 50 Largest Uploads misses some uploads

Bug
1

Running Top 50 Largest Uploads gives me says my biggest upload is less than 1mb, I know it’s wrong, so I explored and found them:

SELECT 
    uploads.original_filename,
    ROUND(uploads.filesize / 1000000.0, 2) AS size_in_mb,
    uploads.extension,
    post_uploads.id,
    upload_references.target_type,
    upload_references.target_id
FROM uploads
LEFT JOIN post_uploads ON uploads.id = post_uploads.upload_id
LEFT JOIN upload_references ON uploads.id = upload_references.upload_id
ORDER BY uploads.filesize DESC
LIMIT 50

which finds, for example:

 	4.56 	pdf 	NULL 	Post 	4910

Which is strange: it has no post_uploads, which is why it is not found by the original query, but has an upload_references to a post.

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