$ git clone -n https://src.fedoraproject.org/rpms/bomber.git /var/lib/mock/f38-build-716127-95851/root/chroot_tmpdir/scmroot/bomber
Cloning into '/var/lib/mock/f38-build-716127-95851/root/chroot_tmpdir/scmroot/bomber'...
$ git fetch origin 8085df9c95889e5dc74780be191db5f89f569c08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bomber
 * [new ref]         8085df9c95889e5dc74780be191db5f89f569c08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8085df9 23.04.1