$ git clone -n https://src.fedoraproject.org/rpms/nss_nis.git /var/lib/mock/f33-build-232746-50381/root/chroot_tmpdir/scmroot/nss_nis
Cloning into '/var/lib/mock/f33-build-232746-50381/root/chroot_tmpdir/scmroot/nss_nis'...
$ git reset --hard a448881df5b6dc621f1c2bff884db46436db6f11
HEAD is now at a448881 fix date