bug 1508268: Do not load queryset before paginate
bug 1508268: Do not load queryset before paginate

Revert 25041d4bb5d406e362ddc08df6fa3b0a4ba72569, which processed the
queryset with list before paginating it, for Python 3 compatibility.

jwhitlock/kuma,escattone/kuma,mozilla/kuma,SphinxKnight/kuma,Elchi3/kuma,a2sheppy/kuma,Elchi3/kuma,Elchi3/kuma,SphinxKnight/kuma,SphinxKnight/kuma,escattone/kuma,jwhitlock/kuma,a2sheppy/kuma,a2sheppy/kuma,Elchi3/kuma,jwhitlock/kuma,SphinxKnight/kuma,mozilla/kuma,SphinxKnight/kuma,jwhitlock/kuma,mozilla/kuma,mozilla/kuma,mozilla/kuma,SphinxKnight/kuma,jwhitlock/kuma,a2sheppy/kuma,escattone/kuma,a2sheppy/kuma,Elchi3/kuma