$ git clone -n https://src.fedoraproject.org/rpms/php-psr-cache.git /var/lib/mock/f45-build-28223-628/root/chroot_tmpdir/scmroot/php-psr-cache
Cloning into '/var/lib/mock/f45-build-28223-628/root/chroot_tmpdir/scmroot/php-psr-cache'...
$ git fetch origin c78669d177d66dd832c6159043b17ed2b3fbec08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-psr-cache
 * [new ref]         c78669d177d66dd832c6159043b17ed2b3fbec08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c78669d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild