Water generates inside igloo basement

Inside of Igloo Structure, water block generated inside igloo basement.

Steps to Reproduce

1. Create New World, and use this seed ( -4562084435694871151 ).
2. Teleport to -205 44 131.
3. Inspect the igloo basement.

Observed Behavior
Water generates inside igloo basement.

Expected Behavior
Water should not generate inside igloo basement.