If an individual over 70-1/2 has an employer funded SEP and is still working (and receiving annual contribuitons to the SEP by the employer) must he/she take RMD under the same rules as a normal IRA?

Or is it treated like a 401k where a working non-5% owner can continue to contribute (and receive employer match and profit sharing) and not have to withdraw any funds until the year after they stop work, regardless of age? I believe a Solo 401k acts the same way and does not need to be withdrawan for RMD until work stops.