Revert removal of additionalProperties applicator tests in draft2020-12

Author: anmolbhadoriya5849

tests/draft2020-12/additionalProperties.json

@@ -124,6 +124,24 @@
             }
         ]
     },
+    {
+        "description": "additionalProperties does not look in applicators",
+        "specification":[ { "core": "10.2", "quote": "Subschemas of applicator keywords evaluate the instance completely independently such that the results of one such subschema MUST NOT impact the results of sibling subschemas." } ],
+        "schema": {
+            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "allOf": [
+                {"properties": {"foo": {}}}
+            ],
+            "additionalProperties": {"type": "boolean"}
+        },
+        "tests": [
+            {
+                "description": "properties defined in allOf are not examined",
+                "data": {"foo": 1, "bar": true},
+                "valid": false
+            }
+        ]
+    },
     {
         "description": "additionalProperties with null valued instance properties",
         "specification": [ { "core":"10.3.2.3" } ],