XFCE: bug with "save as"?

["Paul Smith" <phhs80@xxxxxxxxx>]

Dear All,

Do you confirm the following as a bug? I am using XFCE as desktop manager.

1. Open a message of Thunderbird with an attachment and choose to save
the attachment;

2. Click twice in the word "Desktop" on the left side column of the
"Save as" panel;

3. Do you see the name of the attachment vanished from the "Name" line?

Thanks in advance,

Paul