git push --repo option not working as described in git manual.

I am using git 2.2.2 and want to report an issue with git push --repo option.

git 2.2.2 manual says that git push --repo=public will push to public only if the current branch does not track a remote branch. See http://git-scm.com/docs/git-push

However, I see that git pushes even when the current branch is tracking a remote branch.

Here is the test case (push default setting is simple, git version
2.2.2, Mac OS X 10.10.1):
1. I have a local branch "master".
2. "master" tracks remote branch "blah/master".  Here "blah" is the
remote repository.
3. While I am on my local master branch, I run git push --repo=silver
4. git pushes the local master branch to silver repository.
5. But per git manual, it shouldn't push to silver, as the local
branch is tracking "blah/master".

Here is another test case (push default setting is simple, git version
2.2.2, Mac OS X 10.10.1):
1. I have a local branch "whoa".
2. "whoa" tracks remote branch "origin/whoa".  Here "origin" is the
remote repository.
3. While I am on my local whoa branch, I run git push --repo=blah
4. git pushes the local whoa branch to blah repository.
5. But per git manual, it shouldn't push to blah, as the local branch
is tracking "origin/whoa".

Appreciate your help. Prem