title: SourceTree - how to checkout to remote repo branch
body: <p>I create a new branch in remote GIT repository. Repository stored on BitBucket.</p>
  
  <p>In my my local repository I can see this new branch with SourceTree. It appears in commits list, on same commit I create branch from. But I cannot see this new branch under branches list and cannot checkout it. </p>
  
  <p>I want to checkout and push updated on my local workstation code to remote repository back, but within exactly this new branch. I started development on same branch, what was source to clone new branch.</p>
  
  <p>I tried to pull this new branch. It is empty as it should, but it still not under branches list and I cannot checkout it.</p>
  
  <p>How to commit to this new branch?</p>