Using @RefreshScope on configuration with RestHighLevelClient leads to null restClient

Describe the bug
With spring data elasticsearch, when we used @RefreshScope on the configuration, the restClient is null and thus we can't perform operation on the cluster. Without this, it work perfectly fine.

Spring version:
spring boot starter parent 2.3.5
spring cloud config : 2.2.4
spring boot data elasticsearch 4.0.5

Sample

@Configuration
@EnableElasticsearchRepositories
public class ElasticConfig {

    @Bean
    @RefreshScope
    public ElasticProperties elasticProperties() {
        return new ElasticProperties();
    }

    @Bean
    @RefreshScope
    public RestHighLevelClient client() {
        ClientConfiguration clientConfiguration = ClientConfiguration.builder()
                .connectedTo(elasticProperties().getClusterNodes()).build();
        return RestClients.create(clientConfiguration).rest();
    }

    @Bean
    @RefreshScope
    public ElasticsearchOperations elasticsearchTemplate() {
        return new ElasticsearchRestTemplate(client());
    }
}

Thanks

Start with the sample ElasticConfig and reproduce the null RestHighLevelClient using the listed Spring Boot, Spring Cloud Config, and Spring Data Elasticsearch versions. Trace how @RefreshScope affects the ElasticProperties, client, and ElasticsearchRestTemplate beans; done means cluster operations work with @RefreshScope enabled without a null client.