Re: [RFC! PATCH] pull: refuse complete src:dst fetchspec arguments

> git-pull has historically accepted full fetchspecs, meaning that you
> could do
> 
>   git pull $repo A:B
> 
> which would simultaneously fetch the remote branch A into the local
> branch B and merge B into HEAD.  This got especially confusing if B
> was checked out.  New users variously mistook pull for fetch or read
> that command as "merge the remote A into my B", neither of which is
> correct.
> 
> Since the above usage should be very rare and can be done with
> separate calls to fetch and merge, we just disallow full fetchspecs in
> git-pull.
> 
> Signed-off-by: Thomas Rast <trast@student.ethz.ch>