spring-projects/spring-data-mongodb — pull request #139 by christophstrobl (2014-03-04 14:03:11+00:00)
Title: DATAMONGO-821 - Support mongodb syntax for DBRef properties.

`QueryMapper` skips `DBRef` conversion in case the given source value is a nested `DBObject`. This allows to directly use mongodb operators wrapped in `DBObject` on association properties.