Ive already forked. Fork is visible for me in 'revisions' tab
When select fork, i have green "approve" button for fork i made myself. And then I press it (and confirm), nothing changes.

Meh, I cant create another translation to same language :<
There is just no 'C++' option now.

There is no button on both versions? Then lets try to republish. I copied code.

Looks like the only way to edit smth is forking lol.
Description is updated. I was worrying should i insert C++ correct braces in description or not. I have thought it is unnecessary.

I assume what it is caused by passing lists by pointer in python. Test send list to your method and method which supposed to be right. And then right method get list without element you popped. Solution is copying list in context of your method or not removing element. Or placing it back after removing XD