Revert "Merge pull request #243 from Beirdo/master"

This reverts commit 1583454, reversing
changes made to 8bbdb59.

Author: p1c2u

openapi_core/schema/schemas/models.py

@@ -67,12 +67,8 @@ def __init__(
 
         self._source = _source
 
-    # Overriding object.__dict__ is a VERY bad idea as it totally breaks any
-    # possibility of pickling this object.  Pickling marshalls via object.__dict__
-    # via default __getstate__ and __setstate__ methods.  This is now renamed to
-    # keep the functionality for the validators, but keep pickling operational.
     @property
-    def __newdict__(self):
+    def __dict__(self):
         return self._source or self.to_dict()
 
     def to_dict(self):

openapi_core/unmarshalling/schemas/factories.py

@@ -86,7 +86,7 @@ def get_validator(self, schema):
         }
         if self.context is not None:
             kwargs[self.CONTEXT_VALIDATION[self.context]] = True
-        return OAS30Validator(schema.__newdict__, **kwargs)
+        return OAS30Validator(schema.__dict__, **kwargs)
 
     def _get_format_checker(self):
         fc = deepcopy(oas30_format_checker)