I am also experiencing this issue, but only when I use some kind of cascades with the method. When there is a cascade, the collection is fetched with EARLY... That did not happen in Preview5...
I've got the same issues. I've logged a JIRA bug report.
I am using a foreign key mapping strategy and there is no join table involved. In addition, I have set up my entities such that there IS a bidirectional relationship between, for example:
Entity A and Entity B
- Entity A has a one-to-many to Entity B
- Entity B has a many-to-one relationship to Entity A