Seams that this issue has been already fixed in version 4.3.6:

https://github.com/hibernate/hibernate-orm/blob/4.3.6.Final/hibernate-core/src/main/java/org/hibernate/cfg/annotations/ResultsetMappingSecondPass.java#L197

Although the fix hasn't been yet merged to master:
https://github.com/hibernate/hibernate-orm/blob/master/hibernate-core/src/main/java/org/hibernate/cfg/annotations/ResultsetMappingSecondPass.java#L202