title: Github ERROR: Repository not found (yes, another one)
body: <p>I've searched and read most of the similar issues here on SO and none seem to be the same as mine.  I have a private repos on Github and an hour ago I was able to push just fine.  Now, I get the ERROR: Repository not found message.</p>
  
  <p>I have the following in my ~/.ssh/config:</p>
  
  <pre><code>Host github
      Hostname github.com
      User git
      IdentityFile ~/.ssh/id_rsa_gr.pub
  </code></pre>
  
  <p>because I need to use a specific public key. My .git/config looks like the following (with some info change for security purposes:</p>
  
  <pre><code>[core]
          repositoryformatversion = 0
          filemode = true
          bare = false
          logallrefupdates = true
          ignorecase = true
  [remote "origin"]
          fetch = +refs/heads/*:refs/remotes/origin/*
          url = git@github:MyProject/MyProject.git
  [branch "master"]
          remote = origin
          merge = refs/heads/master
  </code></pre>
  
  <p>I don't understand why it worked for a while then just stopped.</p>
  
  <p>EDIT: Now, I can't even clone it.  I get the same error.</p>
  
  <p>EDIT 2: I added VERBOSE to my ssh config and this is what I get:</p>
  
  <pre><code>Authenticated to github.com ([207.97.227.239]:22).
  ERROR: Repository not found.
  Transferred: sent 2432, received 2920 bytes, in 0.2 seconds
  Bytes per second: sent 12278.1, received 14741.7
  fatal: The remote end hung up unexpectedly
  </code></pre>
  
  <p>EDIT 3: More information, I ran ssh -vT git@github and here is the relevant information:</p>
  
  <pre><code>debug1: Reading configuration data /Users/gdboling/.ssh/config
  debug1: Applying options for gh
  debug1: Reading configuration data /etc/ssh_config
  debug1: Applying options for *
  debug1: Connecting to github.com [207.97.227.239] port 22.
  debug1: Connection established.
  debug1: identity file /Users/gdboling/.ssh/id_rsa_gr type 1
  debug1: identity file /Users/gdboling/.ssh/id_rsa_gr-cert type -1
  ....
  debug1: Next authentication method: publickey
  debug1: Offering RSA public key: /Users/gdboling/.ssh/id_rsa
  </code></pre>
  
  <p>Note it is finding the right key, then using the wrong one.</p>