$ git clone -n https://src.fedoraproject.org/rpms/php-pdb.git /var/lib/mock/f45-build-28011-627/root/chroot_tmpdir/scmroot/php-pdb
Cloning into '/var/lib/mock/f45-build-28011-627/root/chroot_tmpdir/scmroot/php-pdb'...
$ git fetch origin cae6d379a6e94f1409bd2eafb4db7159d3136b23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pdb
 * [new ref]         cae6d379a6e94f1409bd2eafb4db7159d3136b23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cae6d37 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild