Hidden Category ignores Table single status

[HoochSDS]

Hi, If you have a Table with single selection like this

        <m.table:MaterialDataTable m:id="customTable" ui:field="table"
                                   height="50vh"
                                   useStickyHeader="true"
                                   useCategories="true"
                                   useRowExpansion="false"
                                   selectionType="SINGLE"/>

you can select more than one row, if you hide the Category.
Using 2.2-SNAPSHOT\gwt-material-2.2-20190531.021210-77.jar
Issue is also in older Versions (GMD:2.01)
Thank you