if (model.getDistributionManagement() != null
                && model.getDistributionManagement().getRelocation() != null) {
            // keep relocation only
            builder.distributionManagement(DistributionManagement.newBuilder()
                    .relocation(model.getDistributionManagement().getRelocation())
                    .build());
        }
        // only keep repositories other than 'central'