title: Edit button in some files in bitbucket is disabled
body: <p>Edit button in some files in bitbucket is disabled.</p>
  <p>for example:</p>
  <p><a href="https://i.stack.imgur.com/HUlsX.png" rel="noreferrer"><img src="https://i.stack.imgur.com/HUlsX.png" alt="enter image description here" /></a></p>
  <p>but in this repo, I can edit other files.</p>
  <p>Like this:</p>
  <p><a href="https://i.stack.imgur.com/W0mTn.png" rel="noreferrer"><img src="https://i.stack.imgur.com/W0mTn.png" alt="enter image description here" /></a></p>
  <p>I cannot understand the reason.</p>