User blog comment:Sannse/Before You Adopt/@comment-25980608-20150518033042/@comment-8-20150518162209

I would say that was an anomaly, Nerfmaster8. Images deleted by admins are archived, not removed from the server. You should be able to undelete at any time.

Miley Spears, another way to undelete is to go to the deletion log and click "view/restore" next to the file you want (easier that typing the name in to Special:Undelete for me ;). If you scroll down to the "File History", you can click the date of the image version you want, to see the image you want to restore.