<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylVMFy4yAM_Rr7ookHgxMnBx-azWTaX9gbxkpMi00GcLr9-xWQNtmd6V52BjsCPZ6eLCm9HT66Z13wHwU7FOxJetAzBB0M0hm8wCivCMrI-RwdV3Re2xlqUbHojyavWFVDGBG09wvCYNHDbAPgL-1DlXnz-xldRIGESc96koYwcrpQLHFDFBuWlyr4Pq50SvG9h6O1ULS3IyA5IT7oTlIRwf4xEERwJBVP0eDbBE5AvgM6vd-MlNlF1uExAG1vnF_Gg5q9dH-rsct3agic1UQjq7GPau4323123KR8IyESTFLPxJUo7jrkEiyc4pcSB8i51wT5UnRD9FE9IbKePxD3UJ-1eIz8UvCWOkLPyiwDDqADjFTVmMQYwsXHNPmR1lmHcekrZSfa_Hy3dVR7TJ20Olk3ybD6qsHK4cXZYVGBmqscOjHsxE6WpHS0rsuXy8WZ7h8hjLl-_qyI7BVVoG1qSU_GWtStKMdus5W8bhpVsx63rcJa1o1qWNPIQfG13JVG9mh8V6yp_fiM77mryS7Wh_L_FeiOM85ZXQu2W29EXQnR8tNaiKZttii2m6JhSKU1VeSprDuXrkuU_XL25DQ0VP7upFbU5xkxCSaFaXS7x8-cW_3iMGga4qt0WvYGYZYTdfyG3Udow4DG31s6f9PzQB0Kb_jxbt0AkrZqJE4a7cyayOgfQdnZB0eVsw4GNHiWqYYp6y6l_BtdT1I1>53173</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang-format interpreting variable name `interface` as some kind of keyword and changes formatting in constructor delegation
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          Zwo1in
      </td>
    </tr>
</table>

<pre>
    Hi,
as in title, I have clang in version 13.0, on 12.0.1 the issue does not exist.

Here is a minimal example:
```c++
class Foo {
  int interface;

  Foo::Foo(int iface) : interface { iface } {
  }
}

class Bar {
  int outerface;

  Bar::Bar(int oface) : outerface{oface} {}
}

int main() {
  auto foo = Foo(1);
  auto bar = Bar(1);
}
```

I've included it here: https://github.com/Zwo1in/clang-format-interface-reproduction
</pre>
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