Last modified: 2008-09-27 23:10:04 UTC
Warning farm appeared after uploading duplicate file suggest to return to upload form and choose different name. Should be at least different file. Probably same misleading suggestion appeared in other cases.
The default message for all upload warnings is "Cancel upload and return to the upload form" (MediaWiki:Reuploaddesc). The error is in the customised message at commons ([[Commons:MediaWiki:Reuploaddesc]]), and perhaps other wikis. Find a local adminstrator to change the message.