SetGrid width/height does not override nx,ny

[pgundlach]

Second page should print 5, not 2.

Version 4.19.26

<Layout xmlns="urn:speedata.de:2009/publisher/en"
    xmlns:sd="urn:speedata:2009/publisher/functions/en">
    <Trace grid="yes" />
    <Record element="data">
        <Pageformat height="6cm" width="7cm" />

        <SetGrid nx="2" ny="2" />
        <PlaceObject>
            <Textblock>
                <Paragraph>
                    <Value select="sd:number-of-columns()" />
                </Paragraph>
            </Textblock>
        </PlaceObject>
        <ClearPage />
        <SetGrid width="1cm" height="1cm" />
        <PlaceObject>
            <Textblock>
                <Paragraph>
                    <Value select="sd:number-of-columns()" />
                </Paragraph>
            </Textblock>
        </PlaceObject>
    </Record>
</Layout>