Fix SELECT N+1 for not-found=ignore

Fixes #1059

Co-authored-by: Alexander Zaytsev <[email protected]>
Co-authored-by: Roman Artiukhin <[email protected]>

Author: 3 people

src/NHibernate.Test/Async/NHSpecificTest/NH1001/Fixture.cs

@@ -0,0 +1,8 @@
+namespace NHibernate.Test.NHSpecificTest.NH1001
+{
+	public class Address
+	{
+		public virtual int Id { get; set; }
+		public virtual string Line { get; set; }
+	}
+}

src/NHibernate.Test/NHSpecificTest/NH1001/Address.cs

@@ -1,25 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
 namespace NHibernate.Test.NHSpecificTest.NH1001
 {
-    public class Department
-    {
-        private int id;
-
-        public int Id
-        {
-            get { return id; }
-            set { id = value; }
-        }
-
-        private string name;
-
-        public string Name
-        {
-            get { return name; }
-            set { name = value; }
-        }
-    }
+	public class Department
+	{
+		public virtual int Id { get; set; }
+		public virtual string Name { get; set; }
+		public virtual int PropRefId { get; set; }
+	}
 }

src/NHibernate.Test/NHSpecificTest/NH1001/Department.cs

@@ -1,41 +1,18 @@
-using System;
 using System.Collections.Generic;
-using System.Text;
 
 namespace NHibernate.Test.NHSpecificTest.NH1001
 {
-    public class Employee
-    {
-        private int id;
-
-        public int Id
-        {
-            get { return id; }
-            set { id = value; }
-        }
-
-        private string firstName;
-
-        public string FirstName
-        {
-            get { return firstName; }
-            set { firstName = value; }
-        }
-
-        private string lastName;
-
-        public string LastName
-        {
-            get { return lastName; }
-            set { lastName = value; }
-        }
-
-        private Department department;
-
-        public Department Department
-        {
-            get { return department; }
-            set { department = value; }
-        }
-    }
+	public class Employee
+	{
+		public virtual int Id { get; set; }
+		public virtual string FirstName { get; set; }
+		public virtual string LastName { get; set; }
+		public virtual Department Department1 { get; set; }
+		public virtual Department Department2 { get; set; }
+		public virtual Department Department3 { get; set; }
+		public virtual Department Department4 { get; set; }
+		public virtual Department Department5 { get; set; }
+		public virtual Address Address { get; set; }
+		public virtual IList<Phone> Phones { get; set; } = new List<Phone>();
+	}
 }