The monster spawner block was updated to render its inner faces, more closely resembling a cage. The newly introduced trial spawners also behave the same. However, when a solid block is placed beside it, the opposite face may be culled.
Steps to Reproduce:
Place a monster spawner/trial spawner;
Place any solid block right beside its northern or southern;
Look inside the block through the transparent gaps.
Observed Results:
The north and south cullfaces are reversed. East, west, up and down behave normally.
Expected Results:
The cullfaces match the direction.
Screenshots/Videos attached: Yes
Notes:
Linked issues
duplicates
Attachments
Comments

Actually duplicates MC-266454, it came first.