in kubernetes/policy/templates/job.yaml the image definition is:
containers:
- name: {{ include "common.release" . }}-policy-galera-db-migrator
image: {{ .Values.repository }}/{{ .Values.dbmigrator.image }}
imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
But the image definition should use the repositoryGenerator to update the repository to the settings given in the global overrides:
image:{{ include "repositoryGenerator.repository" . }}/{{ .Values.dbmigrator.image }}