title: Tortoisegit: How to fetch from a new remote branch?
body: <p>I am working with tortoisegit and have a local repository where i have configured a remote repository for fetching and pushing the code.</p>
  
  <p>Now i add a new branch to the remote repository. Then, from my local repository, i execute a "fetch" from the remote repository. The expectation is that the new branch is fetched and can then be merged.</p>
  
  <p>But instead the branch is ignored by Tortoisegit.
  I'm trying it via Windows Explorer > Right click > TortoiseGit > Fetch. There i cannot select the new branch, so when i execute the fetch, the new branch is not fetched. The new branch is not tracked.</p>
  
  <p>How can i get Tortoisegit to recognize new remote branches? I can only add and remove remotes in the settings, but i cannot configure ref-specs?</p>