$ git clone -n https://src.fedoraproject.org/rpms/perl-Kwiki-Search.git /var/lib/mock/f45-build-24344-603/root/chroot_tmpdir/scmroot/perl-Kwiki-Search
Cloning into '/var/lib/mock/f45-build-24344-603/root/chroot_tmpdir/scmroot/perl-Kwiki-Search'...
$ git fetch origin d878a5a512b0371984c57e76f04a4556b9854282:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Kwiki-Search
 * [new ref]         d878a5a512b0371984c57e76f04a4556b9854282 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d878a5a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild