@Zegveld I've already added a comment (#3577 (comment)). I do not agree with this change. The @BeanMapping is propagated to downstream mapping methods. If you want to customize something then you should define the explicit mapping for what you are trying to map and define the mapping there.

The entire idea of the ignoreByDefault is that you have to provide all the mappings yourself and you want to disable the implicit mapping that MapStruct provides. If you want things partially then you'll have to provide your own custom mapping method for that.

leaving this PR open, and continuing the discussion in the thread.