NH-2716 - Modify test case as suggested

Closes #1007

Author: hazzik

src/NHibernate.Test/Async/LazyOneToOne/LazyOneToOneTest.cs

@@ -72,6 +72,7 @@ public async Task LazyAsync()
 
 			p2 = await (s.CreateQuery("from Person where name='Emmanuel'").UniqueResultAsync<Person>());
 			Assert.That(p2.Employee, Is.Null);
+			Assert.That(p2.Employee, Is.Null);
 			await (t.CommitAsync());
 			s.Close();
 
@@ -86,6 +87,7 @@ public async Task LazyAsync()
 
 			p2 = await (s.GetAsync<Person>("Emmanuel"));
 			Assert.That(p2.Employee, Is.Null);
+			Assert.That(p2.Employee, Is.Null);
 			await (s.DeleteAsync(p2));
 			await (s.DeleteAsync(old));
 			await (s.DeleteAsync(p));

src/NHibernate.Test/LazyOneToOne/LazyOneToOneTest.cs

@@ -61,6 +61,7 @@ public void Lazy()
 
 			p2 = s.CreateQuery("from Person where name='Emmanuel'").UniqueResult<Person>();
 			Assert.That(p2.Employee, Is.Null);
+			Assert.That(p2.Employee, Is.Null);
 			t.Commit();
 			s.Close();
 
@@ -75,6 +76,7 @@ public void Lazy()
 
 			p2 = s.Get<Person>("Emmanuel");
 			Assert.That(p2.Employee, Is.Null);
+			Assert.That(p2.Employee, Is.Null);
 			s.Delete(p2);
 			s.Delete(old);
 			s.Delete(p);