title: git push on branch src refspec does not match any
body: <p>I would like to clone a branch, make a change and push into the same branch.</p>
  
  <p>I'm doing this:</p>
  
  <pre><code>mkdir myfolder
  cd myfolder
  git init
  git clone "myurl" -b "mybranch"
  git remote add origin "myurl"
  edit "myfile.txt"
  git add "myfile.txt"
  git commit -m "my comment"
  git push origin "mybranch"
  </code></pre>
  
  <p>but I got this error:</p>
  
  <pre><code>error: src refspec "mybranch" does not match any 
  error: failed to push some refs to "myurl"
  </code></pre>
  
  <p>what should I do?</p>