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a71e1ea211
Fixed bug where an object that is expunged during a rollback of
a nested or subtransaction which also had its primary key mutated
would not be correctly removed from the session, causing subsequent
issues in using the session.
Change-Id: I57e2888902015d67ee11857e44382818f1d2f8bc
Fixes: #4151
(cherry picked from commit 5811276bb7)