To add notes for bfarber and others trying to reproduce:
No cache on block due to the dynamic nature of submission queues
Bug also shows on other 3rd party "latest gallery" hooks and gallery's own 'latest' list and user's 'gallery tab' in profile.
Images are also still present on the server.
Gallery resync/rebuilds etc do not remove presence.
Steps to reproduce:
* Gallery MUST be moderated (images require moderator approval before public).
* User uploads image
* User immediately removes image BEFORE being approved.
* Original and resized images still present on server (/uploads/gallery/album_xyz), all blocks & hooks displaying 'latest' or 'unapproved' gallery submissions contain 'ghost' submission still.
* Shown only to Admin/Moderators