bug#23695: 25.0.94; todo-mode breaks minibuffer-complete-word

[Eli Zaretskii <eliz@gnu.org>]

> From: Stephen Berman <stephen.berman@gmx.net>
> Date: Fri, 10 Jun 2016 11:28:14 +0200
> 
> On Sun, 05 Jun 2016 11:18:46 +0200 Stephen Berman <stephen.berman@gmx.net> wrote:
> 
> > 0. emacs -Q
> > 1. Sanity check: Typing e.g. `C-h f url- SPC' should pop up a
> >    *Completions* buffer showing functions beginning with "url-", since
> >    SPC in the minibuffer is bound to minibuffer-complete-word.
> > 2. C-g to exit the minibuffer, then, if you have no files made by
> >    todo-mode (i.e. no directory ~/.emacs.d/todo), type `M-x todo-show
> >    RET RET RET RET RET' (accepting defaults) to create a todo file with
> >    a category and an entry.
> > 3. Type `q' to quit todo-mode (optional) and redo step 1.
> > => Upon typing SPC this time, instead of getting the *Completions*
> >    buffer, a space is inserted in the minibuffer after "url-".
> >
> > If at step 2 you already have one or more todo-files, then invoking a
> > number of todo-mode commands, e.g. `j' to jump to another category or
> > `C a' to add a new category, will likewise globally change the effect of
> > all subsequent uses of SPC in the minibuffer.
> >
> > The patch below fixes this.  I request approval to push this fix to
> > emacs-25, since without it, todo-mode-specific behavior changes the
> > minibuffer behavior in rest of Emacs.  Also, the fix is certainly safe,
> > since it replaces naively implemented functionality by canonical code to
> > temporarily change a minibuffer key binding.
> 
> Ping!  Any objections to pushing this fix to emacs-25?

We've lived with this for the last 2 years, how come it's so urgent
now?