Preserve transform when group has clip-path

===

<svg xmlns="http://www.w3.org/2000/svg">
    <clipPath id="a">
       <path d="..."/>
    </clipPath>
    <clipPath id="b">
       <path d="..."/>
    </clipPath>
    <g transform="matrix(0 -1.25 -1.25 0 100 100)" clip-path="url(#a)">
        <g transform="scale(.2)">
            <path d="..."/>
            <path d="..."/>
        </g>
    </g>
    <g transform="matrix(0 -1.25 -1.25 0 100 100)" clip-path="url(#a)">
        <g transform="scale(.2)">
            <g>
                <g clip-path="url(#b)">
                    <path d="..."/>
                    <path d="..."/>
                </g>
            </g>
        </g>
    </g>
</svg>

@@@

<svg xmlns="http://www.w3.org/2000/svg">
    <clipPath id="a">
        <path d="..."/>
    </clipPath>
    <clipPath id="b">
        <path d="..."/>
    </clipPath>
    <g transform="matrix(0 -1.25 -1.25 0 100 100)" clip-path="url(#a)">
        <g transform="scale(.2)">
            <path d="..."/>
            <path d="..."/>
        </g>
    </g>
    <g transform="matrix(0 -1.25 -1.25 0 100 100)" clip-path="url(#a)">
        <g clip-path="url(#b)" transform="scale(.2)">
            <path d="..."/>
            <path d="..."/>
        </g>
    </g>
</svg>