{{ if and (not (eq .Section "about")) .Date }}
{{ end }}
{{- if .Params.series -}}
{{- $series := .GetTerms "series" -}}
{{- if gt (len $series) 1 -}}
{{- errorf "More than one series for %s" .Permalink -}}
{{- end -}}
{{- with index $series 0 -}}
{{ .Title }}
{{- end -}}
{{- end -}}