Error adding item to bidirectional many-to-many

Description

I have two tables (File and Tag) with a bidirection Many-to-Many relationship, with Tag.Files set as Inverse, and both tables and the relation enabled for auditing. If I add a Tag to a File and then save it, it works. But if I add another Tag to that File and save it, I get the error:

Stepping through the code, I see that when the second Tag is added, generateBidirectionalCollectionChangeWorkUnits receives a workUnit with three collection changes. The first two have a changedElement type of ITag, but the third has a changedElement type of NHibernate.Collection.Generic.PersistentIdentifierBag<ITag>.SnapshotElement, which SessionImpl.BestGuessEntityName can't parse.

Should that third collection change item be present?

I've tested this with Envers 2.0 and 2.1 with (our local version of) NHibernate 4.0.

Environment

None

Assignee

Unassigned

Reporter

Aaron Humphrey

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Components

Affects versions

Priority

Minor
Configure