$ git clone -n https://src.fedoraproject.org/rpms/kcm_systemd.git /var/lib/mock/f40-build-2546871-61910/root/chroot_tmpdir/scmroot/kcm_systemd
Cloning into '/var/lib/mock/f40-build-2546871-61910/root/chroot_tmpdir/scmroot/kcm_systemd'...
$ git fetch origin 2562e25b606d4f21db3da25e2f056dc4bd14438e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kcm_systemd
 * [new ref]         2562e25b606d4f21db3da25e2f056dc4bd14438e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2562e25 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild