title: Refresh all files in buffer from disk in vim
body: <p>The command to refresh a file from version on disk is <code>:e!</code></p>
  
  <p>How can I do the same for all files in the buffer? </p>
  
  <p>Background: I need that because I am using git with multiple branches with one vim open that contains a buffer. When I checkout a branch, I would like to have vim refresh.</p>