Trial Chambers generated next to previously-existing chunks are incomplete.

If a trail chamber tries to generate near chunks made in 1.20 and  below it will generate with walled off sections (chunk borders from 1.20 and below) So far after exploring some trail chambers near spawn almost every single one had walled off sections. This should be easy to fix as all yall need to do is not let trail chambers spawn near pre-1.21 chunks, hope this gets fixed soon.