gitconfig includes

I just noticed something weird: if I have this in my ~/.gitconfig:

    [x]
      x = global
    [include]
      path = .gitconfig.more

and .gitconfig.more has

    [x]
      x = more

then I get:

1. git config x.x                      =>  more
2. git config --global x.x             =>  global
3. git config --global --includes x.x  =>  more

The first works as I expected. The second surprised me, since I took "--global" to mean "the global file and stuff it includes" (that's my understanding of the description of `include`). The third is fine, but it made me even more surprised at the second, especially since the man blurb on --includes says "Defaults to on."...

So this is at least a documentation issue, though I hope that #2 is a bug and that it *should* return "more"...?