fixed wiki headers function issue

modules/wiki/__init__.py

@@ -26,7 +26,7 @@ from .getinfobox import get_infobox_pic
          recommend_modules='wiki_inline',
          allowed_none=False)
 async def wiki_wrapper(msg: MessageSession):
-    if msg.parsed_msg['set']:
+    if msg.parsed_msg['set'] and not msg.parsed_msg['headers']:
         await set_start_wiki(msg)
     elif msg.parsed_msg['iw']:
         await interwiki(msg)

modules/wiki/dbutils.py

@@ -64,6 +64,7 @@ class WikiTargetInfo:
 
     def config_headers(self, headers, let_it: [bool, None] = True):
         try:
+            headers = json.loads(headers)
             headers_ = json.loads(self.query.headers)
             if let_it:
                 for x in headers: