box shadows are weirdly clipped with border radius

[paulrouget]

<style>
  div {
    border-radius: 50%;
    width: 100px;
    height: 100px;
    background: red;
    border: 10px solid black;
    box-shadow: 0 0 0px 10px red;
  }
</style>
<div></div>

[mrobinson]

I'm not seeing this any longer. There have been a lot of changes to clipping and border rendering. I think we can close this for now. Please feel free to reopen if it's still an issue.