$ git clone -n https://src.fedoraproject.org/rpms/kcalutils.git /var/lib/mock/f45-build-14621-462/root/chroot_tmpdir/scmroot/kcalutils
Cloning into '/var/lib/mock/f45-build-14621-462/root/chroot_tmpdir/scmroot/kcalutils'...
$ git fetch origin 172c016e1cda78be63867645a888baa281f46fff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kcalutils
 * [new ref]         172c016e1cda78be63867645a888baa281f46fff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 172c016 26.08.1