diff --git a/github/GithubObject.UnitTest.py b/github/GithubObject.UnitTest.py
index 5b79bfcc..597dcd30 100644
--- a/github/GithubObject.UnitTest.py
+++ b/github/GithubObject.UnitTest.py
@@ -100,5 +100,14 @@ class EditableGithubObject( TestCaseWithGithubTestObject ):
         self.o.edit( 11, a2 = 22, a4 = 44 )
         self.expectPatch( "/test", { "a1": 11, "a2": 22, "a4": 44 } ).andReturn( {} )
         self.o.edit( 11, 22, a4 = 44 )
+        # - acknowledges updates of attributes
+        self.expectPatch( "/test", { "a1": 11 } ).andReturn( { "a2": 22, "a3": 3 } )
+        self.o.edit( a1 = 11 )
+        self.assertEqual( self.o.a1, 1 )
+        self.assertEqual( self.o.a2, 22 )
+        self.assertEqual( self.o.a3, 3 )
+        # # - is completed even after 'edit's
+        # self.expectGet( "/test" ).andReturn( {} )
+        # self.assertEqual( self.o.a4, None )
 
 unittest.main()
diff --git a/github/GithubObject.py b/github/GithubObject.py
index 30d569af..04cee543 100644
--- a/github/GithubObject.py
+++ b/github/GithubObject.py
@@ -43,7 +43,8 @@ class Editable:
             for argumentName in kwds:
                 if argumentName not in itertools.chain( self.__mandatoryParamters, self.__optionalParameters ):
                     raise TypeError()
-            self.__obj._github.rawRequest( "PATCH", "/test", kwds )
+            attributes = self.__obj._github.rawRequest( "PATCH", "/test", kwds )
+            self.__obj._updateAttributes( attributes )
 
     class AttributeDefinition:
         def __init__( self, mandatoryParamters, optionalParameters ):
@@ -76,7 +77,7 @@ def GithubObject( className, *attributePolicies ):
         def __init__( self, github, attributes, lazy ):
             self._github = github
             self.__attributes = dict()
-            self.__updateAttributes( attributes )
+            self._updateAttributes( attributes )
             if not lazy:
                 for attributeName in attributeDefinitions:
                     if attributeName not in self.__attributes:
@@ -90,7 +91,7 @@ def GithubObject( className, *attributePolicies ):
             else:
                 raise AttributeError()
 
-        def __updateAttributes( self, attributes ):
+        def _updateAttributes( self, attributes ):
             for attributeName, attributeValue in attributes.iteritems():
                 attributeDefinition = attributeDefinitions[ attributeName ]
                 if attributeValue is None:
@@ -101,6 +102,6 @@ def GithubObject( className, *attributePolicies ):
 
         def __fetchAttribute( self, attributeName ):
             attributeDefinition = attributeDefinitions[ attributeName ]
-            self.__updateAttributes( attributeDefinition.fetchRawValues( self ) )
+            self._updateAttributes( attributeDefinition.fetchRawValues( self ) )
 
     return GithubObject