ancient_city/city_center/city_center_3 has the piston doors open

How to reproduce:
1) /give @p minecraft:structure_block.
2) Place the structure block, interact with that, type "minecraft:ancient_city/city_center/city_center_3" and then click on "generate".
3) Note that the piston doors are open unlike city_center_1 and 2 that are close.