$ git clone -n https://src.fedoraproject.org/rpms/php-kissifrot-php-ixr.git /var/lib/mock/f42-build-side-1-3499828-45966/root/chroot_tmpdir/scmroot/php-kissifrot-php-ixr
Cloning into '/var/lib/mock/f42-build-side-1-3499828-45966/root/chroot_tmpdir/scmroot/php-kissifrot-php-ixr'...
$ git fetch origin 98822a1a4d7ebc1843ee9e6493069b818652f67a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-kissifrot-php-ixr
 * [new ref]         98822a1a4d7ebc1843ee9e6493069b818652f67a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98822a1 Update to v1.8.4