$ git clone -n https://src.fedoraproject.org/rpms/evolution-rspam.git /var/lib/mock/f40-build-2207812-52101/root/chroot_tmpdir/scmroot/evolution-rspam
Cloning into '/var/lib/mock/f40-build-2207812-52101/root/chroot_tmpdir/scmroot/evolution-rspam'...
$ git fetch origin ba3f7f075ab65bd8010c0253b2f9d8c8336c5d1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-rspam
 * [new ref]         ba3f7f075ab65bd8010c0253b2f9d8c8336c5d1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba3f7f0 Rebuilt for evolution-data-server soname version bump