bug-fix

tasks/update_published_articles_minigram_detail.py

@@ -164,7 +164,7 @@ class UpdatePublishedArticlesMinigramDetail(object):
         url = article_info['ContentUrl']
         publish_timestamp = article_info['publish_timestamp']
         wx_sn = article_info['wx_sn'].decode()
-        root_source_id_list = json.loads(article_info['root_source_id_list'])
+        root_source_id_list = json.loads(article_info['root_source_id_list'] if article_info['root_source_id_list'] else EMPTY_LIST)
 
         article_mini_program_detail = self.get_article_mini_program_info(url, root_source_id_list)
         if article_mini_program_detail: