title: unable to unlink .git/objects/...: Operation not permitted
body: <p>When pulling from my remote develop branch, I get a long series of messages like this:</p>
  
  <pre><code>unable to unlink .git/objects/fe/4f55215c297e73e7115d0792257155fa1a0307: Operation not permitted
  </code></pre>
  
  <p>I shut down IntelliJ and all other open editors as suggested <a href="https://stackoverflow.com/questions/7199496/git-checkout-warning-unable-to-unlink-files-permission-denied">here</a>, but the error persisted.
  I tried to chflags on all files, as written <a href="https://stackoverflow.com/questions/22827676/git-warnings-about-unable-to-unlink-git-objects-how-do-i-resolve-this">here</a>, but it did nothing.
  I also tried chowning all files to my user and forcing write permissions with chmod both on files and on the directory itself, recursively (both from my user and sudo, I tried simply +x, then 775), but to no avail. </p>
  
  <p>I cannot get rid of these messages. This happens only when pulling develop. Other branches are fine.</p>