SpringBoot Auto-configured BraveTracer does not back off when another kind of Tracer bean is defined

https://github.com/spring-projects/spring-boot/blob/12c77dba1c5cec1fbfc8406e1710613ca81ab04b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/tracing/BraveAutoConfiguration.java#L162-L166

It'll only back off if there's another BraveTracer. It should back off for any kind of Tracer.