Comment 20 for bug 35565

This might be an important hint.

I have been able to reproduce the bug as follows.

Install edgy. Choose american english in the installation. Use edgy normally for a few days. Delete a file from a partition other than /, so that a folder .Trash-username is created on that partition. Let's call that partition P.

Then, install language support (system -> administration). Install italian language support. Log out and, in gdm, change the language to italian before loggin in. When asked if this should be your default language, choose yes.

Now that you are logged in with the italian language, go to the partition which we called P, and delete a file with nautilus. Then, with nautilus, enter the trashcan (menu -> go -> trash, which in italian is Menu - >Vai -> Cestino). You will notice the trashcan looks empty, instead of containing the deleted file. Now, with nautilus, show hidden files and navigate to the .Trash-username folder. The deleted file does appear there.

So the trashcan bug might be related to localization in some way.