when serializing json in POST (e.x. chart_json), use 'has_key' not 'hasattr' on bundle.data to check if field exists
when serializing json in POST (e.x. chart_json), use 'has_key' not 'hasattr' on bundle.data to check if field exists

unicef/rhizome,unicef/rhizome,unicef/rhizome,unicef/rhizome