On 14 March 2014, Indonesian President, Susilo Bambang Yudhoyono, signed a presidential decree (Keputusan Presiden) No. 12/2014, to change the legal use of Indonesian language term to refer China. Changes including to replace the term Cina or China to Tiongkok to refer China as a country, and Tionghoa to refer Chinese people, or Chinese descents. This change was meant to eradicate discrimination and prejudice towards Chinese Indonesians.
That is true, but many people here still use ‘Cina’ to refer to both PRC and the Chinese descendants. They don’t regard it to be very derogatory either, although saying Tionghoa/Tiongkok does sound more polite & politically correct.
I believe- as a native speaker- what makes a word pejorative, in Indonesian, is more so in the intonation rather than the actual word itself.