$ git clone -n https://src.fedoraproject.org/rpms/smatch.git /var/lib/mock/f45-build-36118-701/root/chroot_tmpdir/scmroot/smatch
Cloning into '/var/lib/mock/f45-build-36118-701/root/chroot_tmpdir/scmroot/smatch'...
$ git fetch origin 866b7533417f6a0a9dad16e2e49a347e01475c2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/smatch
 * [new ref]         866b7533417f6a0a9dad16e2e49a347e01475c2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 866b753 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild