Was the Korean visa invalid before the epidemic?

What was done before the Korean visa epidemic was not invalid.

According to the latest news released by the Korean government, all short-term visas (single and multiple visas with a stay of no more than 90 days) issued before April 5, 2020 will be temporarily suspended, but long-term visas (employment, investment, etc.). ) and visas (C-4) eligible for short-term employment are not suspended.