Fix for chapter repeats.

modules/web_app.py

@@ -1108,7 +1108,7 @@ def save_chapter(run_id):
     if os.path.exists(ms_path):
         ms = utils.load_json(ms_path)
         for ch in ms:
-            if ch.get('num') == chap_num:
+            if str(ch.get('num')) == str(chap_num):
                 ch['content'] = new_content
                 break
         with open(ms_path, 'w') as f: json.dump(ms, f, indent=2)