title: I am getting 500 error on git clone
body: <p>I am unable to clone a newly created repository. I am getting below error.</p>
  
  <pre><code>$ git clone https://github.xxxxx.com/zzzzzz.git
  Cloning into 'zzzzzz'...
  Username for 'https://github.xxxxxx.com': yyyyy
  Password for 'https://yyyyy@github.xxxxxx.com':
  remote: Internal Server Error.
  remote:
  fatal: unable to access 'https://github.xxxxxx.com/zzzzz.git/': The requested URL returned error: 500
  </code></pre>
  
  <p>I have successfully generated ssh keys and updated the key in github settings as per the instructions in the below URL</p>
  
  <p><a href="https://help.github.com/articles/generating-ssh-keys/" rel="noreferrer">https://help.github.com/articles/generating-ssh-keys/</a></p>
  
  <p>authentication was success when I executed the command: 
   git -T git@github.xxx.com </p>
  
  <p>Also as per my understanding if we setup the ssh the git clone command should not ask for username and password. But it still asking for them.</p>
  
  <pre><code>debug1: Authentication succeeded (publickey).
  Authenticated to github.xxxxx.com ([10.28.22.44]:22).
  debug1: channel 0: new [client-session]
  debug1: Entering interactive session.
  Hi xxxx! You've successfully authenticated, but GitHub does not provide shell access. 
  debug1: channel 0: free: client-session, nchannels 1
  Transferred: sent 3880, received 1696 bytes, in 0.2 seconds
  Bytes per second: sent 19132.2, received 8363.0
  debug1: Exit status 1
  </code></pre>