Sulfur caves near the surface do not generate cinnabar, sulfur, sulfur spikes in Bedrock Edition

In Bedrock Edition, sulfur caves that generate close to the surface fail to produce associated features — specifically cinnabar, sulfur blocks, sulfur spikes, and sulfur springs. According to a comment by a Mojang official on MC-307323, surface-level sulfur caves are intended to generate these features just as they do when the cave generates deeper underground. Currently, this is not happening.

Steps to Reproduce:

1. Create a new world using the seed 934598.

2. Navigate to the coordinates 49 95 -62.

3. Observe the terrain features present on the surface at this location.

Observed Results:
The surface only generates large amounts of stone blocks. No cinnabar, sulfur, sulfur spikes, or sulfur fountains are present.

Expected Results:
The surface-level sulfur cave should generate the normal cave features — cinnabar, sulfur, sulfur spikes, and sulfur fountains — exactly as they would appear inside a sulfur cave located deeper underground.