$ git clone -n https://src.fedoraproject.org/rpms/kf5-kunitconversion.git /var/lib/mock/f40-build-742160-110610/root/chroot_tmpdir/scmroot/kf5-kunitconversion
Cloning into '/var/lib/mock/f40-build-742160-110610/root/chroot_tmpdir/scmroot/kf5-kunitconversion'...
$ git fetch origin 5c1725e98b8d29b65b1c5488a0e7d5d5a382df49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kunitconversion
 * [new ref]         5c1725e98b8d29b65b1c5488a0e7d5d5a382df49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c1725e 5.111.0