notFoundMetaErrs, nonActionableMetaErrs := danglingMetaErrsCount(errs)

	notFoundPartsErrs, nonActionablePartsErrs := 0, 0
	for _, dataErrs := range dataErrsByPart {
		if nf, na := danglingPartErrsCount(dataErrs); nf > notFoundPartsErrs {
			notFoundPartsErrs, nonActionablePartsErrs = nf, na
		}
	}

	for _, m := range metaArr {
		if m.IsValid() {
			validMeta = m
			break
		}
	}