1 Using ikiwiki 3.20100815.7 on Debian Squeeze or ikiwiki 3.20100815~bpo50+1 on Debian Lenny, the [[attachments|plugins/attachment] list on an edit page all show the same (wrong) file size, which is the size of one of the files.
2 You can see the phenomenon on this wiki page:
3 <http://tools.ipol.im/ikiwiki.cgi?page=sandbox&do=edit>.