<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/63407>63407</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang-format: 'UseTab: AlignWithSpaces' causes alignment with tab, 'UseTab: ForIndentation' causes indentation with spaces
        </td>
    </tr>

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

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

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

<pre>
    Hi, I'm trying to configure clang-format, and I can't get it to consistently indent with tabs but not align with tabs.

Here's a screenshot of some code formatted with `UseTab: ForIndentation`, where some lines (the `: user_...` and `, callback_...` ones) are indented with tabs:

If I change the config to `UseTab: AlignWithSpaces`, those lines get correctly indented with tabs, but the inheritance list changes to being aligned with tabs:

What I want doesn't seem super complicated. Indent with tabs, but align with spaces. And clang-format's `UseTab` option sounds like it's supposed to support that behavior, but nothing I've tried has gotten clang-format to indent with tabs but align with spaces. What am I doing wrong?
</pre>
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