title: git tfs branch --init --all errors
body: <p>I used <a href="https://stackoverflow.com/a/13710811/260865">https://stackoverflow.com/a/13710811/260865</a> to get a tfs repo with branches in one git repo and it works fine for a couple of branches. But I wasn't able to init all branches because of:<br>
  <code>"C:\tmp\Main&gt;git tfs branch --init --authors=C:\tmp\authors-file.txt $/someproject/Branches/7.2.0
  The name of the local branch will be : Branches/7.2.0
  error: The root changeset 26907 have not be found in the Git repository. The branch containing the changeset should not have been created. Please do it before retrying!!"</code> </p>
  
  <p>or </p>
  
  <p><code>C:\tmp\Main&gt;git tfs branch --init --authors=C:\tmp\authors-file.txt $/someproject/Releases/7.0.0.1
  The name of the local branch will be : Releases/7.0.0.1
  An unexpected error occured when trying to find the root changeset.
  Failed to find root changeset for $/someproject/Releases/7.0.0.1 branch in $/someproject/Main branch</code> (renamed branch issue: <a href="https://github.com/git-tfs/git-tfs/pull/299" rel="nofollow noreferrer">https://github.com/git-tfs/git-tfs/pull/299</a>)</p>
  
  <p>TFS says that 7.0.0.1 is a child branch of Main.</p>
  
  <p>Environment:
  git-tfs version 0.17.1.0 (TFS client library 11.0.0.0 (MS)) (32-bit)
  C:\tools\gittfs\git-tfs.exe</p>
  
  <p>Has someone a solution for that?</p>