Stateless Session with deduplicated result with join fetch
Linq Unit Test for Join Fetch with Stateless Session

Shows that the change made in StatelessSessionImpl.GetEntityUsingInterceptor effectively eliminates Duplicates in a Linq query with Join Fetch.
Unit Test for FetchMany and ThenFetchMany in Stateless Session

Signed-off-by: CSharper2010 <csharper2010@googlemail.com>
Code style cleanup.
StatelessSessionImpl.cs: Add reference to issue.
Merge fix for NH-3015 Join fetch with Stateless Session returns duplicate entities