When villagers breed, the babies claim an unoccupied nearby bed. However, after the babies travel more than 200 blocks away from the village, the bed still remains claimed and the villagers will no longer breed unless the nearby beds are broken and replaced.
MC-148120
Villagers not releasing bed after claim when more than 200 blocks away
Resolved
Works As Intended
4
Confirmed
Minecraft 1.14 Pre-Release 2, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 4
Retrieved
Can confirm that villagers far away from their beds will keep that location in their memory. However, if they find a new bed in their new location, they will claim that one instead.