title: Checking if merge request can be merged…
body: <p>On gitlab, I create a merge request where :</p>
  <ul>
  <li>I did a small modification on a small README.md file</li>
  <li>I modified many big json files
  <ul>
  <li>hierarchy is :
  <ul>
  <li>/dirA/dirB1/many json files</li>
  <li>/dirA/dirB1/dirC/many json files</li>
  <li>/dirA/dirB2/many json files</li>
  <li>/dirA/dirB2/dirC/many json files</li>
  <li>/dirA/dirB3/many json files</li>
  <li>/dirA/dirB3/dirC/many json files</li>
  <li>/dirA/dirB4/many json files</li>
  <li>/dirA/dirB4/dirC/many json files</li>
  </ul>
  </li>
  </ul>
  </li>
  <li>I add a .gitattributes file with this contents : <code>*.json -text -merge -diff</code></li>
  </ul>
  <p>Impossible to merge it, I have a throbber and the message <strong>Checking if merge request can be merged…</strong></p>
  <p>I added the .gitattributes to resolve the problem but nothing changed.</p>
  <p>I saw many link about similar problems (<a href="https://gitlab.com/gitlab-org/gitlab/-/issues/263390" rel="nofollow noreferrer">https://gitlab.com/gitlab-org/gitlab/-/issues/263390</a> and <a href="https://gitlab.com/gitlab-org/gitlab/-/issues/229352" rel="nofollow noreferrer">https://gitlab.com/gitlab-org/gitlab/-/issues/229352</a>) but I'm unable to fix (maybe I misunderstood or maybe it isn't linked to my problem).</p>
  <p>I don't need to be able to see the changes in my json files (but I need them so I cannot add them in .gitignor).</p>
  <p>I ask for help (resolve and understand).</p>