Two-by-two dark oak trees with their dirt generate without ground to spawn on and above grass blocks

The bug

Dark oak trees can generate floating.

To reproduce

Seed: 1359968930092793278
Coordinates: /execute in minecraft:overworld run tp @s -8071.65 105.00 -680.46 -129.30 -52.80

Expected behavior

Dark oak trees would not be able to generate floating.