Fix regression in sending back an Accept for a Follow

federation/entities/activitypub/entities.py

@@ -66,7 +66,8 @@ class ActivitypubFollow(ActivitypubObjectMixin, Follow):
                 accept,
                 UserType(id=self.target_id, private_key=key),
                 recipients=[{
-                    "fid": profile.inboxes["private"],
+                    "endpoint": profile.inboxes["private"],
+                    "fid": self.actor_id,
                     "protocol": "activitypub",
                     "public": False,
                 }],

federation/tests/entities/activitypub/test_entities.py

@@ -93,7 +93,8 @@ class TestEntitiesPostReceive:
         assert args[1].id == "https://example.com/profile"
         assert isinstance(args[1].private_key, RsaKey)
         assert kwargs['recipients'] == [{
-            "fid": "https://example.com/bob/private",
+            "endpoint": "https://example.com/bob/private",
+            "fid": "https://localhost/profile",
             "protocol": "activitypub",
             "public": False,
         }]