wrong-type-argument listp 27

[Leo]

Dear all,

To reproduce:

 1. start emacs in terminal
 2. M-x xterm-mouse-mode
 3. Use mouse to drag select a region
 4. Any subsequent key stroke will cause an error, backtrace:

,----
| Debugger entered--Lisp error: (wrong-type-argument listp 27)
| mouse-drag-track((down-mouse-1 (#<window 740 on #emacs> 141973 (6
| . 24) 72100380 nil 141973 (6 . 23) nil (0 . 0) (1 . 0))) t)
| mouse-drag-region((down-mouse-1 (#<window 740 on #emacs> 141973 (6
| . 24) 72100380 nil 141973 (6 . 23) nil (0 . 0) (1 . 0))))
| call-interactively(mouse-drag-region)
`----

This is tested in GNU Emacs 23.0.0.1 (i686-pc-linux-gnu, X toolkit) of
2007-05-18. But it might also happen in Emacs 22.

Best,
-- 
Leo <sdl.web AT gmail.com>                         (GPG Key: 9283AA3F)