$ git clone -n https://src.fedoraproject.org/rpms/php-psr-link.git /var/lib/mock/f45-build-28258-629/root/chroot_tmpdir/scmroot/php-psr-link
Cloning into '/var/lib/mock/f45-build-28258-629/root/chroot_tmpdir/scmroot/php-psr-link'...
$ git fetch origin c513cd1c74429fbfbcbb424baec1e215c0c5fb49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-psr-link
 * [new ref]         c513cd1c74429fbfbcbb424baec1e215c0c5fb49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c513cd1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild