$ git clone -n https://src.fedoraproject.org/rpms/fex-emu.git /var/lib/mock/f41-build-851085-165854/root/chroot_tmpdir/scmroot/fex-emu
Cloning into '/var/lib/mock/f41-build-851085-165854/root/chroot_tmpdir/scmroot/fex-emu'...
$ git fetch origin cee2d7e5a0578331e34a158227e8a75ad6edbde0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fex-emu
 * [new ref]         cee2d7e5a0578331e34a158227e8a75ad6edbde0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cee2d7e Update to 2409