title: Git credentials catche issue
body: <p>Thanks to <a href="https://githubengineering.com/crypto-deprecation-notice/" rel="nofollow noreferrer">git disabling support for weak cahcing</a>, I am having issue with caching credentials. I updated to latest git for window ( 2.18 ) but the issue persists. </p>
  
  <p>Apparantly, the windows Credentials manager is being used for credentials storage instead for GCM for windows. Because everytime it prompts for credentials, a new entry is created -
  <a href="https://i.stack.imgur.com/12TCP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/12TCP.png" alt="enter image description here"></a></p>
  
  <p>and it stops prompting for credentials. However when I delete it, it goes back to prompting for credentials.</p>
  
  <p>I am getting the following issue while the credentials is cache. 
  <a href="https://i.stack.imgur.com/9NNgm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9NNgm.png" alt="enter image description here"></a></p>
  
  <p>I guess, things might work if I change the credendial manager to GCM for windows. How do i do that?</p>