Refs #28214 -- Added test for escaping JSONField key lookups.

Thanks mrsanders for the report.

Fixed in 7deeabc7c7.

tests/postgres_tests/test_json.py

@@ -411,6 +411,10 @@ class TestQuerying(PostgreSQLTestCase):
                     **{lookup: value},
                 ).exists())
 
+    def test_key_escape(self):
+        obj = JSONModel.objects.create(field={'%total': 10})
+        self.assertEqual(JSONModel.objects.filter(**{'field__%total': 10}).get(), obj)
+
 
 @isolate_apps('postgres_tests')
 class TestChecks(PostgreSQLSimpleTestCase):