Spring @SessionAttributes handler invoked too early if controller method execution is deferred

saveModel will be executed before the controller method when the return value is Mono<View>

https://github.com/spring-projects/spring-framework/blob/19c7527376233c6a5ea42fb6920d004b7be79d66/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/RequestMappingHandlerAdapter.java#L203

Comment From: rstoyanchev

Indeed, this should be executed later, probably as part of result handling in ViewResolutionResultHandler where we also use BindingContext to update the model with BindingResult, at a point after the return value is resolved.

Comment From: rstoyanchev

Fixed in 74972fb75139d46fa6873717728eca15e49c0558 but referenced the wrong issue.