$ git clone -n https://src.fedoraproject.org/rpms/krdp.git /var/lib/mock/f41-build-side-1-2878830-34446/root/chroot_tmpdir/scmroot/krdp
Cloning into '/var/lib/mock/f41-build-side-1-2878830-34446/root/chroot_tmpdir/scmroot/krdp'...
$ git fetch origin 848c3dc2d337d204a60eeb7bf7d79b2554b39331:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/krdp
 * [new ref]         848c3dc2d337d204a60eeb7bf7d79b2554b39331 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 848c3dc 6.2.0