Incorrect svg simplification by usvg for images with clipPath, use and transform

[woodroof]

Minimal reproducible example:

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 20 20">
    <defs>
        <rect id="id1" y="0.4" transform="matrix(-1 0 0 -1 20 20)" width="20" height="19.2"/>
    </defs>
    <clipPath id="id2">
        <use xlink:href="#id1" />
    </clipPath>
    <rect clip-path="url(#id2)" x="5" y="5" width="10" height="10" fill="red"/>
</svg>

Usvg result:

<svg width="20" height="20" xmlns="http://www.w3.org/2000/svg">
    <defs>
        <clipPath id="id2"/>
    </defs>
    <g clip-path="url(#id2)">
        <path fill="#ff0000" stroke="none" d="M 5 5 L 15 5 L 15 15 L 5 15 Z"/>
    </g>
</svg>

clipPath doesn't have any geometry, and it should.
Everything works correctly if I remove transform or replace use with rect. It also works with identity matrix, i.e. transform="matrix(1 0 0 1 0 0)".

Tried to modify this example and use mask instead, and it also works correctly.

The example above can be simplified, but I discovered this problem on a way more complex thirdparty image.