BUG : Parent of transient dialog boxes

[Emmanuel <e allaud wanadoo fr>]

	Hi all,
I observed that the file selection dialog box for
attachments launched from send message window doesn't disappear if you
close the composition window.
I thought we can correct that setting parent window for that dialog boxes
just adding a call to gtk_window_set_transient_for(GTK_WINDOW(dialog_box),GTK_WINDOW(parent_window))
but I tried it in vain.
Does someone know the good way to do it ? (and is that really an issue or
not)
Bye
Manu