The bug is either with compiz or gtk-window-decorator, and it does not affect only Nautilus windows but many others as well. For example, GIMP and Pidgin will both open exactly the height of the title bar lower than where they were at the time of closing. But they do not keep descending after that.
The reason why I am mentioning gtk-window-decorator is because this issue does not manifest itself when the decorations are off, i.e. all the windows reopen on the positions as were saved with the session manager.
The bug is either with compiz or gtk-window- decorator, and it does not affect only Nautilus windows but many others as well. For example, GIMP and Pidgin will both open exactly the height of the title bar lower than where they were at the time of closing. But they do not keep descending after that.
The reason why I am mentioning gtk-window- decorator is because this issue does not manifest itself when the decorations are off, i.e. all the windows reopen on the positions as were saved with the session manager.