That will return all revisions, including the last 5 that solely updated the #name property. Calling Session#refresh prior to the Session#update is a workaround, as well as not clearing the Session after the add and each update. The issue appears to be limited to detached entities.
After discussing with & , Lukasz suggested:
I had a closer look at the issue. The root cause is that Brett updates detached entities. In SinglePropertyMapper#mapModifiedFlagsToMapFromEntity(SessionImplementor, Map, Object, Object) we do not know the previous state of the entity. We would need to introduce pre-update listener and query database (if needed) to cache original state of the entity. Of course, the issue applies only to "modified flag" feature.