$ git clone -n https://src.fedoraproject.org/rpms/python-omemo-backend-signal.git /var/lib/mock/f41-build-side-1-2975231-35838/root/chroot_tmpdir/scmroot/python-omemo-backend-signal
Cloning into '/var/lib/mock/f41-build-side-1-2975231-35838/root/chroot_tmpdir/scmroot/python-omemo-backend-signal'...
$ git fetch origin 8456d1e0c1db87e5ed9d15238ec07d09f4f697b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-omemo-backend-signal
 * [new ref]         8456d1e0c1db87e5ed9d15238ec07d09f4f697b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8456d1e convert GPLv3 license to SPDX