How to restore default sort order after GroupBy?

On the home page I want to group pages by year and then fall back to default sorting within each year (Weight > Date > LinkTitle > FilePath). How to apply default ordering rules to {{ range .Pages }}?

{{ range (where (where .Pages "Draft" "==" false) "Section" "!=" "").GroupByDate "2006" }}
<section>
    <h2>{{ .Key }}</h2>
    {{ range .Pages }}
    <article>
        <header>
            <h3><a href="{{ .Permalink }}">{{ if .Draft }}[DRAFT] {{ end }}{{ .Title }}</a></h2>
        </header>
        {{ .Summary }}
    </article>
    {{ end }}
</section>
{{ end }}