Bug Report: Folder called "0" will not show in file list.

[ccto]

Hello Parallels Support,

We are using Site Builder 4.5.0 Hotfix-20110711 (2011071115)

We found that in Common page, goto "Insert/Edit Image" , browse Server
then you insert a few jpg files
then you create some folders, say 1, 2, 3, folder4, folder10, or else
then SB45 works as usual

then you create a folder called - 0 (simply one character - zero)
then the previous file/folder will no longer show in the list.

Inside the SSH, in the folder - /usr/local/sitebuilder/htdocs/sites/fe/fe4536df???????????/attachments/Image
the file and folder structure is still here, but no longer be available in GUI.

Please check/help.

Thank you for your kind attention.