$ git clone -n https://src.fedoraproject.org/rpms/sssd.git /var/lib/mock/f40-build-779821-130506/root/chroot_tmpdir/scmroot/sssd
Cloning into '/var/lib/mock/f40-build-779821-130506/root/chroot_tmpdir/scmroot/sssd'...
$ git fetch origin 8222ea8b56b430a62199ca77ff2a4036040bc046:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sssd
 * [new ref]         8222ea8b56b430a62199ca77ff2a4036040bc046 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8222ea8 Fix the build with Samba 4.20