List: fix copy if child is a page generator
List: fix copy if child is a page generator

used like that in vw highlights

kaufmo/koala-framework,nsams/koala-framework,nsams/koala-framework,kaufmo/koala-framework,koala-framework/koala-framework,yacon/koala-framework,Sogl/koala-framework,nsams/koala-framework,yacon/koala-framework,koala-framework/koala-framework,Ben-Ho/koala-framework,yacon/koala-framework,kaufmo/koala-framework,Ben-Ho/koala-framework,Sogl/koala-framework