$ git clone -n https://src.fedoraproject.org/rpms/quantum-espresso.git /var/lib/mock/f41-build-1764185-24713/root/chroot_tmpdir/scmroot/quantum-espresso
Cloning into '/var/lib/mock/f41-build-1764185-24713/root/chroot_tmpdir/scmroot/quantum-espresso'...
$ git fetch origin 20cd9f85643e6fd059aba76d387c0329b9366ab6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/quantum-espresso
 * [new ref]         20cd9f85643e6fd059aba76d387c0329b9366ab6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20cd9f8 convert GPLv2+ license to SPDX