Typing a city searches the installer timezone list
A change merged into quattro always opens a search on the installer timezone prompt. The guess is the first entry, the search starts empty, and Enter takes the guess.
The installer's timezone prompt opened a list of 598 zones that took no typed text, and the prompt always has a guess, so nobody can type a city. With Europe/Amsterdam as the guess, typing tokyo moved the cursor to Etc/Zulu.
Typing london then leaves only Europe/London. An empty result still becomes UTC. The first press of Esc leaves the search field, so going back takes two presses.
emirb booted the rc2 ISO in QEMU and drove the installer on tty1. Enter returned Europe/Amsterdam. Typing london and then Enter returned Europe/London. emirb did not run a full install to disk with the change.