$ git clone -n https://src.fedoraproject.org/rpms/sparkleshare.git /var/lib/mock/f41-build-side-1-2983726-35886/root/chroot_tmpdir/scmroot/sparkleshare
Cloning into '/var/lib/mock/f41-build-side-1-2983726-35886/root/chroot_tmpdir/scmroot/sparkleshare'...
$ git fetch origin 5e636c8924e875292f2f2782e940b919d2ffa186:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sparkleshare
 * [new ref]         5e636c8924e875292f2f2782e940b919d2ffa186 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e636c8 convert GPLv3+ license to SPDX