$ git clone -n https://src.fedoraproject.org/rpms/php-phar-io-version3.git /var/lib/mock/f45-build-28120-628/root/chroot_tmpdir/scmroot/php-phar-io-version3
Cloning into '/var/lib/mock/f45-build-28120-628/root/chroot_tmpdir/scmroot/php-phar-io-version3'...
$ git fetch origin e39dd6fd7691f2a2196cd3b1680c971979c810a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-phar-io-version3
 * [new ref]         e39dd6fd7691f2a2196cd3b1680c971979c810a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e39dd6f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild