Spiders can't see through walls

Spiders can't see through walls in Minecraft anymore last time they were allowed to see through walls was 1.7.10 before the AI change it has been fixed once in a 1.9 snapshot but it broke again at some point but i went into 1.14.4 pre 5 and i tested with a house without a roof went into survival while it was night time with spiders all around it went into F5 mode and they just stand around and i was safe but i went into 1.7.10 did the same thing and all of the spiders in the area started climbing up and started attacking me i know this is a bug because this is part of their AI to see through walls.