Playing on B42, I noticed that zombies that are supposed to attack bandits will suddenly target the player no matter how far the player is, even behind walls.
Zombies can spot and target a distant bandit properly but when the zombie gets close, the zombie will start walking to the player. Bandits will chase them and try to kill them like normal and zombies can still bite bandits that get close enough.

You can get a good visual of this bug with these steps
-load in with debug
-open lua debugger with F11
-click options then in "Pathfind" enable "Render.Path"
-in "Cheat" enabling "Player.SeeEveryone" also helps
-hide behind some walls/buildings without getting spotted.
-spawn some bandits near some zombies as far as you can and watch the path lines lock onto the player

I'm using the latest release of the mod.