Sorry, didn't find the duplicate :/
Firstly the issue aren't really related to each other and secondly with 1.13 it really makes sense to have those different usable blockstates.
Now x_rotation
is correct again and y_rotation
doesn't work. 😛
You can reopen this issue in its first version.
(Snapshot 17w50a)
I think the issue changed a bit. In versions 17w47a and 17w47b, both x- and y-rotation behave like y_rotation.
It would be nice if you could update the issue.
Can confirm for 1.15 and 1.15.1 Pre-Release 1