Add tests for nhibernate#3609

src/NHibernate.Test/NHSpecificTest/GH3609/Entities.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace NHibernate.Test.NHSpecificTest.GH3609
+{
+	public class Order
+	{
+		public virtual long Id { get; set; }
+
+		public virtual string UniqueId { get; set; } = Guid.NewGuid().ToString();
+
+		public virtual DateTime CreatedDate { get; set; }
+	}
+
+	public class LineItem
+	{
+		public virtual long Id { get; set; }
+
+		public virtual Order Order { get; set; }
+
+		public virtual string ItemName { get; set; }
+
+		public virtual decimal Amount { get; set; }
+	}
+}

src/NHibernate.Test/NHSpecificTest/GH3609/Fixture.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Linq;
+using NUnit.Framework;
+
+namespace NHibernate.Test.NHSpecificTest.GH3609
+{
+	[TestFixture]
+	public class Fixture : BugTestCase
+	{
+		protected override void OnSetUp()
+		{
+			using (var session = OpenSession())
+			using (var transaction = session.BeginTransaction())
+			{
+
+				var order = new Order
+				{
+					UniqueId = "0ab92479-8a17-4dbc-9bef-ce4344940cec",
+					CreatedDate = new DateTime(2024, 09, 24)
+				};
+				session.Save(order);
+
+				session.Save(new LineItem { Order = order, ItemName = "Bananas", Amount = 5 });
+
+				transaction.Commit();
+			}
+		}
+
+		protected override void OnTearDown()
+		{
+			using (var session = OpenSession())
+			using (var transaction = session.BeginTransaction())
+			{
+
+				session.CreateQuery("delete from System.Object").ExecuteUpdate();
+
+				transaction.Commit();
+			}
+		}
+
+		[Test]
+		public void QueryWithAny()
+		{
+			using (var session = OpenSession())
+			using (var transaction = session.BeginTransaction())
+			{
+				// This form of query is how we first discovered the issue.  This is a simplified reproduction of the
+				// sort of Linq that we were using in our app.  It seems to occur when we force an EXISTS( ... ) subquery.
+				var validOrders = session.Query<Order>().Where(x => x.CreatedDate > new DateTime(2024, 9, 10));
+				var orderCount = session.Query<LineItem>().Count(x => validOrders.Any(y => y == x.Order));
+
+				Assert.That(orderCount, Is.EqualTo(1));
+			}
+		}
+
+		[Test]
+		public void QueryWithContains()
+		{
+			using (var session = OpenSession())
+			using (var transaction = session.BeginTransaction())
+			{
+				var validOrders = session.Query<Order>().Where(x => x.CreatedDate > new DateTime(2024, 9, 10));
+				var orderCount = session.Query<LineItem>().Count(x => validOrders.Contains(x.Order));
+
+				Assert.That(orderCount, Is.EqualTo(1));
+			}
+		}
+
+		[Test]
+		public void SimpleQueryForDataWhichWasInsertedViaAdoShouldProvideExpectedResults()
+		{
+			using (var session = OpenSession())
+			using (var transaction = session.BeginTransaction())
+			{
+				// This style of equivalent query does not exhibit the problem.  This test passes no matter which NH version.
+				var lineItem = session.Query<LineItem>().FirstOrDefault(x => x.Order.CreatedDate > new DateTime(2024, 9, 10));
+				Assert.That(lineItem, Is.Not.Null);
+			}
+		}
+	}
+}

src/NHibernate.Test/NHSpecificTest/GH3609/Mappings.hbm.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="NHibernate.Test"
+                   namespace="NHibernate.Test.NHSpecificTest.GH3609">
+
+  <class name="Order" table="TheOrder">
+    <id name="Id" generator="identity" />
+    <property name="CreatedDate" />
+    <property name="UniqueId" />
+  </class>
+
+  <class name="LineItem">
+    <id name="Id" generator="identity" />
+    <property name="ItemName" />
+    <property name="Amount" />
+    <many-to-one name="Order"
+                 property-ref="UniqueId"
+                 not-found="ignore"
+                 column="OrderId" />
+  </class>
+
+</hibernate-mapping>

src/NHibernate/Hql/Ast/ANTLR/Tree/DotNode.cs

@@ -153,7 +153,7 @@ public override void ResolveFirstChild()
 			string propName = property.Text;
 			_propertyName = propName;
 
-			// If the uresolved property path isn't set yet, just use the property name.
+			// If the unresolved property path isn't set yet, just use the property name.
 			if (_propertyPath == null)
 			{
 				_propertyPath = propName;