title: Git Extensions stored wrong credentials
body: <p>My username and password were stored somewhere in internals of Git Extensions. After some time it was necessary to give username and password again and I gave wrong pass many times.</p>
  
  <p>Now if I want to pull something etc. I receive <code>fatal: Authentication failed</code>. I cannot give new password, it seems to be stored and I don't know how to change it.</p>
  
  <p>Is it possible to delete the old credentials?</p>
  
  <p>I have 2.51.04 version. I have uninstalled it and install again and it doesnt help me.</p>