Problem binding mouse-1 to Info-mouse-follow-nearest-node

[martin rudalics <rudalics@gmx.at>]

With yesterday's trunk and emacs -Q yanking the following forms into
*scratch*

(setq debug-on-error t)

(add-hook
  'Info-mode-hook
  '(lambda ()
     (define-key Info-mode-map [mouse-1]
       'Info-mouse-follow-nearest-node)))

and evaluating them, firing up Info via C-h i and doing mouse-1
somewhere in the *info* buffer gets me (with a short delay)

Debugger entered--Lisp error: (args-out-of-range 1 1083)
   buffer-substring-no-properties(1 1083)
   deactivate-mark()

This is part of (probably silly) code that used to work from my .emacs
for many years.  Could a knowing soul please tell me what might have
happened here lately?

Thanks in advance, martin


GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
  of 2011-04-10 on NESTOR