[hibernate-dev] Metamodel, Jandex and "XML mixins"

I was looking into some failures on master in regards to XML overrides for JPA annotations in relation to our friend Access/AccessType. Which got me to thinking... How does the "mixin" code handle defining the target for the AnnotationInstances it creates? Seems to me this code would have really no idea whether to choose the field or the getter as the target. Which is potentially problematic as we are validating the "placement" of these annotations. Strong? Hardy? Maybe we need to look at adding a virtual notion of the attribute as the target in the virtual AnnotationInstance?