Protocol.load bug fix, leave new/changed None if we don't know for sure

eg if local is False

models.py

@@ -374,6 +374,8 @@ class Object(StringIdModel):
 
     # Protocol and subclasses set these in fetch if this Object is new or if its
     # contents have changed from what was originally loaded from the datastore.
+    # If either one is None, that means we don't know whether this Object is
+    # new/changed.
     new = None
     changed = None
 

protocol.py

@@ -634,6 +634,9 @@ class Protocol:
     def load(cls, id, remote=None, local=True, **kwargs):
         """Loads and returns an Object from memory cache, datastore, or HTTP fetch.
 
+        Sets the :attr:`new` and :attr:`changed` attributes if we know either
+        one for the loaded object, ie local is True and remote is True or None.
+
         Note that :meth:`Object._post_put_hook` updates the cache.
 
         Args:
@@ -693,14 +696,14 @@ class Protocol:
             obj.clear()
             obj.new = False
         else:
+            obj = Object(id=id)
             if local:
                 logger.info('  not in datastore')
-            obj = Object(id=id)
-            obj.new = True
-            obj.changed = False
+                obj.new = True
+                obj.changed = False
 
         cls.fetch(obj, **kwargs)
-        if not obj.new:
+        if obj.new is False:
             if orig_as1 and obj.as1:
                 obj.changed = as1.activity_changed(orig_as1, obj.as1)
             else:

tests/test_protocol.py

@@ -250,6 +250,15 @@ class ProtocolTest(TestCase):
         self.assertFalse(loaded.new)
         self.assertEqual(['foo'], Fake.fetched)
 
+    def test_load_remote_true_local_false(self):
+        Fake.fetchable['foo'] = our_as1={'x': 'y'}
+
+        loaded = Fake.load('foo', local=False, remote=True)
+        self.assertEqual({'x': 'y'}, loaded.as1)
+        self.assertIsNone(loaded.changed)
+        self.assertIsNone(loaded.new)
+        self.assertEqual(['foo'], Fake.fetched)
+
     def test_load_remote_true_changed(self):
         self.store_object(id='foo', our_as1={'content': 'stored'})
         Fake.fetchable['foo'] = {'content': 'new'}