Multiple Configuration Files for same service

This is more a question/or if there's a workaround for what I'm trying to do:

Consider a Spring Cloud Config Server with (profile is just an example, would be applicable to others, git, etc.)

profile: native
searchLocations: /somewhere/config

And Service A (Spring Cloud Config Client) with
spring.cloud.config.name=service-a

As is stands, Service A will request service-a.yml from config folder on Server.
Now I want to include a few more files to my service configuration, so my server config folder looks like this:

config/
  service-a.yml
  /service-a/a.yml
  /service-b/b.yml

Configuring Service A (Spring Cloud Config Client) as
spring.cloud.config.name=service-a,service-a(_)a,service-a(_)b

This does not allow me to fetch these files unless I update the searchLocations to look like
searchLocations: /somewhere/config,/somewhere/config/service-a

Is there a workaround so I don't have to keep changing the searchLocations?

Start by tracing how the Spring Cloud Config Server native profile handles searchLocations and how the client resolves spring.cloud.config.name values. Confirm whether multiple service-specific files can be discovered without changing searchLocations; done means documenting a supported workaround or clearly establishing that the behavior requires a feature change.