DuplicateRotPlace fails while right-clicking and walking or moving the camera.

[ItsClairton]

Describe the false positive and how to replicate it

• Make sure experimental checks are enabled on the server.
• Enter using a 1.8 client and server
• Keep right-clicking while there is no block in your hand, and keep moving your head between the current block and the previous one.

(Note: This happens frequently while you're walking around and pressing the right button, this was the best way I found to reproduce it)

DEMO: https://streamable.com/togdzn

Grim version

c1e02d5

Server version

git-PandaSpigot-151 (MC: 1.8.8)

Client version

Vanilla - 1.8.9

Plugins

Vanilla - 1.8.9

[SamB440]

What does this check even do? Why is it in grim?

[ItsClairton]

What does this check even do? Why is it in grim?

This check appears to be a Heuristic for Scaffold.