https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84855
--- Comment #2 from Hannes Hauswedell <h2+bugs at fsfe dot org> --- Thanks for your explanation, I went to through cppreferences again and the behaviour is now clear to me, although I still wonder why in the case of an lvalue as "input", the step through the intermediary is not required to be elided.
