$ git clone -n https://src.fedoraproject.org/rpms/libwiimote.git /var/lib/mock/f41-build-side-1-2647718-27311/root/chroot_tmpdir/scmroot/libwiimote
Cloning into '/var/lib/mock/f41-build-side-1-2647718-27311/root/chroot_tmpdir/scmroot/libwiimote'...
$ git fetch origin b7d174f80d0dbec9cbc89fa58d76dc5ebeaf62c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libwiimote
 * [new ref]         b7d174f80d0dbec9cbc89fa58d76dc5ebeaf62c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7d174f convert GPLv2+ license to SPDX