[MC-239994] Old worlds with non-bedrock blocks at 0,0,0 do not upgrade chunk column from 0,0,0 to 0,-64,0

Old worlds with non-bedrock blocks at 0,0,0 when upgraded do not convert the ground under them into deepslate

A column was made that went to the void

There would be deepslate in the column not a gap

Attachments

This appears to affect any block that isn't bedrock. I have updated the report to reflect this

Relates to MC-240030 which has been Fixed for a Future release

Appears to be fixed in Pre release 2

Should be working as intended, since the game should is only supposed to generate new caves where there is not bedrock

It's already been triaged and fixed, so I don't see how it would be marked as WAI at this point