NHibernate Contains query bug - mutating a collection after a query has executed breaks queries in subsequent sessions

gistfile1.cs

[Test]
public void UsersWithListContains_MutatingListDoesNotBreakOtherSessions()
{
	using (var firstSession = OpenSession ()) {
		var names = new List<string> { "ayende", "rahien" };

		var query = (from user in firstSession.Query<User> ()
					 where names.Contains(user.Name)
					 select user).ToList();

		names.Clear ();

		Assert.AreEqual(2, query.Count);
	}

	using (var secondSession = OpenSession ()) {
		var names = new List<string> { "ayende" };

		var query = (from user in secondSession.Query<User> ()
					 where names.Contains(user.Name)
					 select user).ToList();

		// This line fails with Expected: 1 But was: 0
		// The SQL in NHProf shows that the where clause was executed as WHERE 1 = 0 as if names were empty
		Assert.AreEqual(1, query.Count);
	}
}

The bug is caused by line 11, names.Clear()