Weird bug

[ObedH26]

Hi there, spotted a weird behavior i wanted to share it;

I did run dir(type(reversed)), and ended up seeing it has a length_init method, when i do type(reversed).length_init, there is no problem it spot the method but i added a question mark and it do duplicate the cell each time i run it and say me it dont exist. (Im on the last version btw, and thank you for your handsome work)