form:checkbox-list doesn't respect 'class' param

[icek]

example xslt:

<xsl:call-template name="form:checkbox-list">
    <xsl:with-param name="handle" select="'category'"/>
    <xsl:with-param name="class" select="'checkbox'"/>
    <xsl:with-param name="options">
        <category>Amateur</category>
        <category>Senior</category>
        <category>Professional</category>
    </xsl:with-param>
</xsl:call-template>

html output:

<label class="">
    <input id="fields-category" class="" type="checkbox" value="Amateur" title="" name="fields[category][]">Amateur
</label>
<label class="">
    <input id="fields-category" class="" type="checkbox" value="Senior" title="" name="fields[category][]">Senior
</label>
<label class="">
    <input id="fields-category" class="" type="checkbox" value="Professional" title="" name="fields[category][]">Professional
</label>

[icek]

Same for form:radiobutton-list

[icek]

value parameter is also not respected, nothing is checked/selected when I use e.g. <xsl:with-param name="value" select="'senior'"/>