$ git clone -n https://src.fedoraproject.org/rpms/input-remapper.git /var/lib/mock/f42-build-side-1-3498864-45963/root/chroot_tmpdir/scmroot/input-remapper
Cloning into '/var/lib/mock/f42-build-side-1-3498864-45963/root/chroot_tmpdir/scmroot/input-remapper'...
$ git fetch origin 6709e81d40fb08b97e6a0ef5ab99aaffc7cb2362:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/input-remapper
 * [new ref]         6709e81d40fb08b97e6a0ef5ab99aaffc7cb2362 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6709e81 Add runtime dependency on psutil