When on Fast graphics, despite leaves becoming opaque, Quark hedges made from and covered in leaves do not.

Steps to reproduce:
Create a new world with Quark.
Build a custom tree using leaves and Quark hedges.
Go to Fancy graphics. Both the leaves and the hedges are translucent.
Go to Fast graphics. The leaves are transparent, but the hedges are still translucent.

As this issue presumably does not have logs or a crash report, I will not attach them.