$ git clone -n https://src.fedoraproject.org/rpms/php-psr-container2.git /var/lib/mock/f45-build-28285-629/root/chroot_tmpdir/scmroot/php-psr-container2
Cloning into '/var/lib/mock/f45-build-28285-629/root/chroot_tmpdir/scmroot/php-psr-container2'...
$ git fetch origin 78637f7b9a57fad6ba05343cca9e2daaf649657e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-psr-container2
 * [new ref]         78637f7b9a57fad6ba05343cca9e2daaf649657e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78637f7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild