$ git clone -n https://src.fedoraproject.org/rpms/python-diskcache.git /var/lib/mock/f45-build-30346-644/root/chroot_tmpdir/scmroot/python-diskcache
Cloning into '/var/lib/mock/f45-build-30346-644/root/chroot_tmpdir/scmroot/python-diskcache'...
$ git fetch origin 552dfae9ba0c00982f7ea3f4abc96d9c79fcc370:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-diskcache
 * [new ref]         552dfae9ba0c00982f7ea3f4abc96d9c79fcc370 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 552dfae Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild