Can't restore a file from the Trash
If a file it's drag and drop to the Trash, there's no option to restore from the Trash folder.
To test this, drag and drop a file to the Trash applet, open the Trash folder and do a right-click on the file. You see that there's no option for restore the file.
If the file it's send to the Trash with the "Supr" key or the right-click menu, the restore option appears in the Trash folder.