<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/64952>64952</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang-format: inconsistent continuation indentation
        </td>
    </tr>

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

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

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

<pre>
    clang-format version 16.0.5

Config
```yaml
Language:        Cpp
Standard: c++20
AlignAfterOpenBracket: DontAlign
AlignEscapedNewlines: DontAlign
AlignOperands:   DontAlign
ColumnLimit: 0
ConstructorInitializerIndentWidth: 0
ContinuationIndentWidth: 8
IndentWidth:     4
TabWidth:        4
UseTab: ForContinuationAndIndentation
```

Code
```cpp
int main() {
        int key = 3;
        std::vector<int> veryLongNameForThisVector{1, 2, 3, 4, 5};

        // Here continuation indentation is done with tabs only.
        auto it = std::find(veryLongNameForThisVector.begin(),
                        veryLongNameForThisVector.end(),
                        key);

        // Here continuation indentation has mix of tabs and spaces. Why?
        bool found = std::find(veryLongNameForThisVector.begin(),
                                                 veryLongNameForThisVector.end(),
                                                 key) != veryLongNameForThisVector.end();
}
```

Here first std::find does continuation indentation using only tabs as I was expecting.

The second std::find however mixes tabs and spaces for some reason. 

Is this a bug? Or have I just misunderstood how continuation indentation works (continuation from what)?

I know that if I use tabs for intendation and I choose to align operands, alignment has to be adjusted with spaces in some cases. But I don't think it should happen here.
</pre>
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