Naturally generated shelf mushrooms flip 180° inward on poplar logs in Dappled Forest.

• Short description of the issue All naturally spawned shelf mushrooms on poplar trunks and fallen poplar logs have their model flipped 180 degrees toward the wood, which looks abnormal.

Steps to reproduce the issue.

1. Open Minecraft Java Edition 26.3 Snapshot 1 .

2. Create a new world and find the Dappled Forest biome.

3. Check shelf mushrooms growing on standing poplar trunks and ground poplar logs.

• Expected result Shelf mushrooms should face outward away from the log, the same as when players manually place this block.

• Actual result Every naturally generated shelf mushroom turns inward against the wood surface, the texture and model are reversed completely.