Entities get stuck in lanterns

I live in a Village in the test world and something strange I saw, was when I put a lantern on a Villager house, 1-2 Villagers instantly run on to it and don't move. AT ALL ! 
Not in the night.. not in a Pillager/Zombie attack. You can still interact with them but they just feel Attracted to the light from the Lantern, this is where the MOTH villager nickname takes place. 
Regard