$ git clone -n https://src.fedoraproject.org/rpms/gnome-firmware.git /var/lib/mock/f39-build-1560750-37344/root/chroot_tmpdir/scmroot/gnome-firmware
Cloning into '/var/lib/mock/f39-build-1560750-37344/root/chroot_tmpdir/scmroot/gnome-firmware'...
$ git fetch origin d7562b8f4f07fcd6e64da8f68c2c83ae39dccace:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-firmware
 * [new ref]         d7562b8f4f07fcd6e64da8f68c2c83ae39dccace -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7562b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild