title: Git Push error: refusing to update checked out branch
body: <p>I have solved some merge conflicts, committed then tried to Push my changes and received the following error:</p>
  
  <pre><code>c:\Program Files (x86)\Git\bin\git.exe push --recurse-submodules=check "origin" master:master
  Done
  remote: error: refusing to update checked out branch: refs/heads/master
  remote: error: By default, updating the current branch in a non-bare repository
  remote: error: is denied, because it will make the index and work tree inconsistent
  remote: error: with what you pushed, and will require 'git reset --hard' to match
  remote: error: the work tree to HEAD.
  remote: error: 
  remote: error: You can set 'receive.denyCurrentBranch' configuration variable to
  remote: error: 'ignore' or 'warn' in the remote repository to allow pushing into
  remote: error: its current branch; however, this is not recommended unless you
  remote: error: arranged to update its work tree to match what you pushed in some
  remote: error: other way.
  remote: error: 
  remote: error: To squelch this message and still keep the default behaviour, set
  remote: error: 'receive.denyCurrentBranch' configuration variable to 'refuse'.
  To C:/Development/GIT_Repo/Project
   ! [remote rejected] master -&gt; master (branch is currently checked out)
  error: failed to push some refs to 'C:/Development/GIT_Repo/Project'
  </code></pre>
  
  <p>Does anyone know what could be causing this error?</p>