I was really hoping that this was a new law to stop people hopping (jumping). I had ideas of mass hopping protests outside Parliment. It seems it's actually to stop law makers / representatives / members of parliament from swapping political parties: https://www.malaymail.com/news/malaysia/2020/08/03/malaysian-bar-says-time-for-anti-hopping-law-to-prevent-lawmakers-from-jump/1890662