$ git clone -n https://src.fedoraproject.org/rpms/php-wikimedia-cdb.git /var/lib/mock/f45-build-28446-629/root/chroot_tmpdir/scmroot/php-wikimedia-cdb
Cloning into '/var/lib/mock/f45-build-28446-629/root/chroot_tmpdir/scmroot/php-wikimedia-cdb'...
$ git fetch origin bd84bc138e520e7983c43d83f8b8c457e44d2d3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-wikimedia-cdb
 * [new ref]         bd84bc138e520e7983c43d83f8b8c457e44d2d3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd84bc1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild