$ git clone -n https://src.fedoraproject.org/rpms/vmod-uuid.git /var/lib/mock/f45-build-38156-722/root/chroot_tmpdir/scmroot/vmod-uuid
Cloning into '/var/lib/mock/f45-build-38156-722/root/chroot_tmpdir/scmroot/vmod-uuid'...
$ git fetch origin e246e76b02a8d4db3c59eebb3da0cc143980b84c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vmod-uuid
 * [new ref]         e246e76b02a8d4db3c59eebb3da0cc143980b84c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e246e76 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild