Yes, I've not come across it before either.

WTF? Nothing in common; in one case a bunch of right wing Americans tried and failed to storm their government. In this case a bunch of foreign"diplomats" from a dictatorship tried to drag a protester into the grounds of their building to beat them.

China might think that current British political problems mean they can do that; British police think otherwise and they're the power on the ground here.

You should see the latest opposition posters in the UK. A leader can should be criticised in a stable democracy.