[#716] Do not use provided schema on later package_show calls

Make sure that if users provide a schema in the context, it is only used
for creating or updating the packages, but not on the package_show call
at the end of the functions.

ckan/logic/action/create.py

@@ -176,6 +176,9 @@ def package_create(context, data_dict):
     context["id"] = pkg.id
     log.debug('Created object %s' % str(pkg.name))
 
+    # Make sure that a user provided schema is not used on package_show
+    context.pop('schema', None)
+
     return_id_only = context.get('return_id_only', False)
 
     output = context['id'] if return_id_only \

ckan/logic/action/update.py

@@ -291,6 +291,9 @@ def package_update(context, data_dict):
 
     return_id_only = context.get('return_id_only', False)
 
+    # Make sure that a user provided schema is not used on package_show
+    context.pop('schema', None)
+
     # we could update the dataset so we should still be able to read it.
     context['ignore_auth'] = True
     output = data_dict['id'] if return_id_only \