Changes to Basalt generation in Nether to maintain parity with Java Edition

Basalt in Basalt Delta biome of Nether generates only at the top layer. After digging 4-5 blocks below the Basalt Deltas surface the generation ends and is replaced completely by Netherrack. This creates inconsistency with the Biome type when the player is below the surface and is also not in parity with Java Edition, where is works perfectly fine. The basalt should generate like it generates in Java Edition.