[nhibernate-issues] [JIRA] Created: (NH-2100) Entity version updated when no update necessary.

[NHibernate J. <nh...@gm...>]

Entity version updated when no update necessary.
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                 Key: NH-2100
                 URL: http://nhjira.koah.net/browse/NH-2100
             Project:  NHibernate
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.1.2.GA
            Reporter: Luke Bakken
            Priority: Major
         Attachments: NH.zip

I have a test case with two classes in a many-to-many relationship. Tests One and Two show failing cases where I would expect the version to not change, test Three shows a case where opening an entirely different session has the expected results.

Stepping through the NH source I can see that in the failing cases the PersistentBag associated with Class2List in Class1 does not have a populated Snapshot - this is why NH forces the collection to be dirty when the transaction ends. I would expect that adding items to a collection, calling Save() and then Commit() would update the Snapshot collection correctly in this case so a second Session is not necessary.

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