updated changelog + improved query_counter test

tests/document/test_instance.py

@@ -2825,44 +2825,6 @@ class TestInstance(MongoDBTestCase):
 
         assert "testdb-1" == B._meta.get("db_alias")
 
-    def test_query_counter_alias(self):
-        """query_counter works properly with db aliases?"""
-        # Register a connection with db_alias testdb-1
-        register_connection("testdb-1", "mongoenginetest2")
-
-        class A(Document):
-            """Uses default db_alias
-            """
-
-            name = StringField()
-
-        class B(Document):
-            """Uses testdb-1 db_alias
-            """
-
-            name = StringField()
-            meta = {"db_alias": "testdb-1"}
-
-        with query_counter() as q:
-            assert q == 0
-            a = A.objects.create(name="A")
-            assert q == 1
-            a = A.objects.first()
-            assert q == 2
-            a.name = "Test A"
-            a.save()
-            assert q == 3
-
-        with query_counter(alias="testdb-1") as q:
-            assert q == 0
-            b = B.objects.create(name="B")
-            assert q == 1
-            b = B.objects.first()
-            assert q == 2
-            b.name = "Test B"
-            b.save()
-            assert q == 3
-
     def test_db_ref_usage(self):
         """DB Ref usage in dict_fields."""