$ git clone -n https://git.cclinux.org/stage/rpms/mpich.git /var/lib/mock/dist-circle8-build-55361-17630/root/chroot_tmpdir/scmroot/mpich
Cloning into '/var/lib/mock/dist-circle8-build-55361-17630/root/chroot_tmpdir/scmroot/mpich'...
$ git reset --hard f781914a32bb5d12125e8b0675394fe5f577e1e4
HEAD is now at f781914 import mpich-3.4.2-1.el8