fix loop requesting seconds

bot_libs/commands_handling.py

@@ -29,6 +29,8 @@ async def get_seconds_from_input(context, update, chat_id, text):
   try: text= int(text)
   except: return
   seconds= max(1, text)
+  if 'ask_seconds' in context.application.bot_data:
+    del(context.application.bot_data['ask_seconds'])
   return await _bot_repeat.start_loop_game(update, context, seconds)
 
 ### basic commands handling