The floor of pillager outposts is asymmetrical

The Bug:

Similar to MC-154097 the floor of pillager outpost is not symmetrical.

Steps to Reproduce:

1. Find a pillager outpost using the command: /locate structure minecraft:pillager_outpost

2. stand in the center of the outpost floor and use the command /fill ~-7 ~ ~-7 ~7 ~19 ~7 air to reveal the floor

3. Observe that the northwest corner is different than other corners.

Observed Behavior:

The floor of the pillager outpost is asymmetrical.

Expected Behavior:

The floor of the pillager outpost should be symmetrical.