I have a common set of files that goes into configmap from common/config-dir and few chart specific config files in appchart/config-dir

I am following the documentation from Helm.sh for using library charts to merge common and chart specific data. I am specifying {{ (.Files.Glob "config-dir/*").AsConfig | indent 2 }} right under data in both common library chart as well as appchart, However, library chart is not picking up the config-dir files from common chart.

Attaching _configmap.yaml from common library chart and configmap.yaml from application chart.

_configmap.yaml

{{- define "common.configmap.tpl" -}}
apiVersion: v1
kind: ConfigMap
metadata:
  name: {{ .Release.Name | printf "%s-%s" .Chart.Name }}
data: 
{{ (.Files.Glob "config-dir/*").AsConfig | indent 2 }}
{{- end -}}

{{- define "common.configmap" -}}
{{- include "common.util.merge" (append . "common.configmap.tpl") -}}
{{- end -}}

configmap.yaml

{{- include "common.configmap" (list . "appchart.configmap") -}}

{{- define "appchart.configmap" -}}
data: 
{{ (.Files.Glob "config-dir/*").AsConfig | indent 2 }}
{{- end -}}