Java Annotation Config not working as documented

[kutzi]

The Java Annotation Config is not working for me as documented on https://github.com/ryantenney/metrics-spring.

I have a class configured with
@configuration
@EnableMetrics(proxyTargetClass = true)
and extending MetricsConfigurerAdapter.

But nevertheless, the DelegatingMetricsConfiguration class is always called (1st)
and the overridden getMetricRegistry() method in my configuration class is not called at all