fix formik metadata reference according to new scheme#1519

gregorydlogan merged 3 commits intoopencast:r/19.xopencast/opencast-admin-interface:r/19.xfrom

ypatios:series-acl-not-copied-in-new-event-wizardypatios/opencast-admin-interface:series-acl-not-copied-in-new-event-wizardCopy head branch name to clipboard