Hi guys, the git migration succeeded, great job of all involved :)
The devtools have the 5.2 patches included and I already have prepared pacman 6.0.2-8 with Allan's mentioned fix. For those who are interested in bash 5.2, I have put packages to: https://pkgbuild.com/~tpowa/bash52/
Have you checked mkinitcpio and arch-install-scripts yet.
Since there was some talk on packaging channel today, I added also the building of bash and pacman to the earlier mentioned place:
Just continue here :) and give a sign when it's ready to move to staging area.