Allow None as a valid value for an optional parameter (fix testEditOrganization)

CodeGenerator/templates/GithubObject.MethodBody.DoRequest.py

@@ -5,7 +5,7 @@
     {% endfor %}
         }
     {% for parameter in method.optional_parameters %}
-        if {{ parameter.name }} is not None:
+        if {{ parameter.name }} is not DefaultValueForOptionalParameters:
             post_parameters[ "{{ parameter.name }}" ] = {{ parameter.name }}
     {% endfor %}
 {% endif %}

CodeGenerator/templates/GithubObject.Parameters.py

@@ -1 +1 @@
-self{% for parameter in function.mandatory_parameters %}, {{ parameter.name }}{% endfor %}{% for parameter in function.optional_parameters %}, {{ parameter.name }} = None{% endfor %}{% if function.variadic_parameter %}, *{{ function.variadic_parameter.name }}s{% endif %}
+self{% for parameter in function.mandatory_parameters %}, {{ parameter.name }}{% endfor %}{% for parameter in function.optional_parameters %}, {{ parameter.name }} = DefaultValueForOptionalParameters{% endfor %}{% if function.variadic_parameter %}, *{{ function.variadic_parameter.name }}s{% endif %}

CodeGenerator/templates/GithubObject.py

@@ -2,6 +2,11 @@
 import {{ dependency }}
 {% endfor %}
 
+# This allows None as a valid value for an optional parameter
+class DefaultValueForOptionalParametersType:
+    pass
+DefaultValueForOptionalParameters = DefaultValueForOptionalParametersType()
+
 class {{ class.name }}( object ):
     def __init__( self, requester, attributes, lazy ):
         self.__requester = requester