Relaxed a query ordering assertion in filtered_relation test.

Author: timgraham

tests/filtered_relation/tests.py

@@ -381,7 +381,7 @@ def test_union(self):
                 "book", condition=Q(book__title__iexact="the book by jane a")
             ),
         ).filter(book_jane__isnull=False)
-        self.assertSequenceEqual(qs1.union(qs2), [self.author1, self.author2])
+        self.assertCountEqual(qs1.union(qs2), [self.author1, self.author2])
 
     @skipUnlessDBFeature("supports_select_intersection")
     def test_intersection(self):