Its very prohibited. And very here refer to having many statements about it in both Quran, the holy book, and Hadith, the prophet Muhammad sayings.
However, to my knowledge this case shouldn’t go to the court in the first place because all the islamic warning are personal. It is like breakout a fast, its personal and there are no law or instructions for a punishment for it.
This shows how bad are the “islamic” groups in Indonesia are. Because in many cases they are doing things that completely unfounded by Islam. I cannot even call them fundamentalist.