$ git clone -n https://src.fedoraproject.org/rpms/elfutils.git /var/lib/mock/f40-build-807797-145268/root/chroot_tmpdir/scmroot/elfutils
Cloning into '/var/lib/mock/f40-build-807797-145268/root/chroot_tmpdir/scmroot/elfutils'...
$ git fetch origin abfa37e359a2d0a86cb02ac8d78f6b04417f7224:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elfutils
 * [new ref]         abfa37e359a2d0a86cb02ac8d78f6b04417f7224 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at abfa37e 0.191-4 - Add elfutils-0.190-riscv-flatten.patch