[docs] [issue37176] super() docs don't say what super() does

Jeroen Demeyer <J.Demeyer@UGent.be> added the comment:

Some of the problems brought up here (which sibling or subclass, and which parameter’s MRO) also came up a few years ago in Issue 23674.

Indeed. I would actually say that these two issues are duplicates of each other. ---------- _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue37176> _______________________________________