$ git clone -n https://src.fedoraproject.org/rpms/php-pear-CodeGen.git /var/lib/mock/f45-build-27995-627/root/chroot_tmpdir/scmroot/php-pear-CodeGen
Cloning into '/var/lib/mock/f45-build-27995-627/root/chroot_tmpdir/scmroot/php-pear-CodeGen'...
$ git fetch origin c89b9d5397ce29e76dd596642c37d0a08b539542:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pear-CodeGen
 * [new ref]         c89b9d5397ce29e76dd596642c37d0a08b539542 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c89b9d5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild