Re: [PATCH 3/9] Fix processing of a patch file which modifies the same file in git-apply.

Robert Fitzsimons [off-list ref] writes:

A patch file (or stdin) which modifies the same file more then once
will fail to apply the patch correctly.  In the worst case it will
apply some of the patch and leave an invalid output file(s).

I am not sure if this is solving the right problem.  A patch
that touches the same file more than once is hard to review and
I think we should be discouraging the users to do so.  The same
comment goes for [PATCH 4/9].