Copper grate pathways in trial chamber corridors sometimes have shattered generation

In trial chamber corridors, copper grate pathways can generate split into pieces with no apparent purpose. This didn't happen before 24w13a.

To reproduce, use the seed 3057310577815726585 and run the following command: 

/execute in minecraft:overworld run tp @s 5.84 -28.00 327.85 -338.12 -25.92