When trying to reload awesome window manager in-place, it restarts X and sends me back to the graphical login. It's only supposed to flash for a second and not even kill any programs. Sometimes I'm able to see something like "login command failed" printed on the screen.
To recreate this, install the "awesome" package, log in to it, and either press control-super-r or open the menu in the top left and go to awesome -> restart.
guix version:
guix (GNU Guix) 1c17adbc7957d024158948a853f4fbc22e52a0f6