Name override for PathVariable being ignored

[efgpinto]

As reported by a user on slack:

I have this action

@RequestMapping("/station/{station_id}")
public class ApiControllerAction extends Action {

@PostMapping("/register")
public Effect<String> registerStation(@PathVariable("station_id") String stationId,
                   @RequestBody StationRegistrationRequest registration) {
…
}
}

When starting, Kalix throws this error:
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [kalix.spring.impl.KalixSpringApplication]: Factory method 'kalixSpringApplication' threw exception with message: Missing field descriptor for field name: stationId

When I rename the argument to “station_id” (so it matches the value of the @PathVariable annotation), it works fine, but this defeats the purpose of this annotation off-course. I guess the argumentName needs to match the variable in the @RequestMapping, and the value of the @PathVariable annotation is just not used.
This is not intuitive for people familiar with those spring web annotations.