bug#11770: 24.1.50; Unable to mouse-mark regions in the info reader

[martin rudalics]

> When marking stuff in an info file via double click, I often get a
> backtrace like the following:
>
> Debugger entered--Lisp error: (args-out-of-range 1 262195)
>   buffer-substring-no-properties(1 262195)
>   pop-mark()
>   mouse-drag-track((down-mouse-1 (#<window 3 on *info*> 262195 (10 . 308) 
> 26997248 nil 262195 (1 . 14) nil (3 . 6) (7 . 15))) t)
>   mouse-drag-region((down-mouse-1 (#<window 3 on *info*> 262195 (10 . 308) 
> 26997248 nil 262195 (1 . 14) nil (3 . 6) (7 . 15))))
>   call-interactively(mouse-drag-region nil nil)
>
>
> It does not seem to happen at the beginning of the info file, but is
> rather common at the end of large info files (like in "(emacs) Bugs").

I remember reporting something similar in

http://lists.gnu.org/archive/html/emacs-devel/2011-04/msg00399.html

martin