Hi Herman Lee, 
I was trying to fix broken boundaries after edits of Wanglang11 and Sparkbright using available resources. There is a territorial dispute in this area so both sides will be unhappy in some way but at least everything was functional. You did a revert and made things even worse, now everything is broken: China, Tibet, Bhutan, India, subareas... Instead of revert you could just adjust ways within relations to reflect correct state. Can you please clean up this mess?