HttpService Client doesn't take spring.jackson properties into account

For an application we are building we have configured Jackson3 through some properties, notably the spring.jackson.default-property-inclusion=not_empty .

We have some HTTP Service clients in different groups and it appears as if this configuration isn't taken into account, inspecting the payload that is being send it includes null fields and empty arrays.

This is then fixed when explicitly configuring the JsonMapper for the specific group.

@Bean
public RestClientHttpServiceGroupConfigurer myGroupConfigurer(JsonMapper jsonMapper) {
    return new RestClientHttpServiceGroupConfigurer() {
        @Override
        public void configureGroups(Groups<RestClient.Builder> groups) {
            groups.filterByName("my-group")
                    .forEachClient((group, cb) ->
                            cb.configureMessageConverters(cb1 -> cb1.withJsonConverter(new JacksonJsonHttpMessageConverter(jsonMapper))));
        }
    };
}  

Am I misunderstanding the documentation, doing something wrong or is this perhaps a bug / oversight?

Versions:
Spring Boot: 4.0.6 (with the default dependency versions, no overrides)
Wiremock: 4.2.1

Start by reproducing the issue with spring.jackson.default-property-inclusion=not_empty and an HTTP Service client group, then trace how RestClientHttpServiceGroupConfigurer creates message converters. Compare the default path with the explicit JacksonJsonHttpMessageConverter configuration shown in the report. Done means the configured Jackson properties affect grouped HTTP Service client payloads without per-group converter configuration, with a regression test covering null fields and empty arrays.