title: Gitlab: Can't push to master only
body: <p>I can't find a reson for being able to push changes in any branch other than master. I mean, I have master branch which I created by pushing my code to gitlab. Than, any tentative to push a change to master branch fails. Nevertheless, I duplicated my master branch with another branch named develop and on it I can push my changes. To make simple, let me put all I am doing after googling for while:</p>
  
  <pre><code>C:\dev\test&gt;git fetch --all
  Fetching origin
  
  C:\dev\test&gt;git reset --hard origin/master
  HEAD is now at 64031f0 just created by generator
  
  ... some changes via my editor ....
  
  C:\dev\test&gt;git commit -a -m "changed project name"
  [master 5abf2f2] changed project name
   1 file changed, 5 insertions(+), 5 deletions(-)
  
  C:\dev\test&gt;git push -u origin/master
  fatal: 'origin/master' does not appear to be a git repository
  fatal: Could not read from remote repository.
  
  Please make sure you have the correct access rights
  and the repository exists.
  
  C:\dev\test&gt;git push
  Counting objects: 3, done.
  Delta compression using up to 4 threads.
  Compressing objects: 100% (3/3), done.
  Writing objects: 100% (3/3), 365 bytes | 365.00 KiB/s, done.
  Total 3 (delta 2), reused 0 (delta 0)
  remote: Error: This is the master branch, and the commit has no merge request
  remote: 64031f03f1723e3399ad467dbbb536942fe144f0 5abf2f29e0ced51289d1fcd684b1510acd354764 refs/heads/master
  To ssh://gitlab.mycomp.net:2222/myportfolio/mycomp-app-sf-just-test.git
   ! [remote rejected] master -&gt; master (pre-receive hook declined)
  error: failed to push some refs to 'ssh://git@gitlab.mycomp.net:2222/myportfolio/mycomp-app-sf-just-test.git'
  
  C:\dev\test&gt;git push -u origin master
  Counting objects: 3, done.
  Delta compression using up to 4 threads.
  Compressing objects: 100% (3/3), done.
  Writing objects: 100% (3/3), 365 bytes | 365.00 KiB/s, done.
  Total 3 (delta 2), reused 0 (delta 0)
  remote: Error: This is the master branch, and the commit has no merge request
  remote: 64031f03f1723e3399ad467dbbb536942fe144f0 5abf2f29e0ced51289d1fcd684b1510acd354764 refs/heads/master
  To ssh://gitlab.mycomp.net:2222/myportfolio/mycomp-app-sf-just-test.git
   ! [remote rejected] master -&gt; master (pre-receive hook declined)
  error: failed to push some refs to 'ssh://git@gitlab.mycomp.net:2222/myportfolio/mycomp-app-sf-just-test.git'
  </code></pre>
  
  <p>In few words, most of answers I saw around tells either to use git push -u or to unprotect the branch. Now my gitlab project branch is unprotected and as you can see I am using -u</p>