Intensity across repetition within a continue

[bartneck]

When adding an <intensity> within a repetition to model a change of intensity across the repetitions, then this will work out fine. If this whole instruction is then embedded into a <continue>, then the intensity is no longer shown in the html. It validates correctly.

    <instruction>
        <continue>
            <instruction>
                <repetition>
                    <repetitionCount>4</repetitionCount>
                    <intensity>
                        <startIntensity>
                            <zone>easy</zone>
                        </startIntensity>
                        <stopIntensity>
                            <zone>racePace</zone>
                        </stopIntensity>
                    </intensity>
                    <instruction>
                        <length>
                            <lengthAsDistance>50</lengthAsDistance>
                        </length>
                        <stroke>
                            <standardStroke>freestyle</standardStroke>
                        </stroke>
                    </instruction>
                </repetition>
            </instruction>
        </continue>
    </instruction>