c:\projects\scm\git\parent
 $ git branch
  master
* newbranch

c:\projects\scm\git\child
 $ git remote show origin
* remote origin
  Fetch URL: c:/projects/scm/git/parent
  Push  URL: c:/projects/scm/git/parent
  HEAD branch (remote HEAD is ambiguous, may be one of the following):
    master
    newbranch
  Remote branches:
    master    tracked
    newbranch tracked
  Local branch configured for 'git pull':
    master merges with remote master
  Local ref configured for 'git push':
    master pushes to master (up to date)

c:\projects\scm\git\child
 $ git branch -r
  origin/HEAD -> origin/master
  origin/master
  origin/newbranch

c:\projects\scm\git\newbranch-only
 $ git remote show origin
* remote origin
  Fetch URL: ..\parent
  Push  URL: ..\parent
  HEAD branch (remote HEAD is ambiguous, may be one of the following):
    master
    newbranch
  Remote branch:
    newbranch tracked

c:\projects\scm\git\newbranch-only
 $ git branch -r
  origin/newbranch

c:\projects\scm\git\newbranch-only
 $ git ls-remote origin
b310158c8dc7a3b62c624d6a2b90910cfc23751c        HEAD
b310158c8dc7a3b62c624d6a2b90910cfc23751c        refs/heads/master
b310158c8dc7a3b62c624d6a2b90910cfc23751c        refs/heads/newbranch