Ever since update 1.7.2 villagers in Savannah and Desert biomes run around like it's raining, all the time. IT'S NOT. Villagers will always run and gather into one house, staying by the door, opening and slamming it repeatedly. Plains villages are unaffected.
Killing existing villagers and/or spawning new villagers in Savannah and Desert doesn't fix problem. It doesn't seem to matter if world/village was created before or after update. Even villages that I built myself (then spawned villagers) in Savannah/Desert have this issue.
Related issues
duplicates
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galaxy_2alex
Duplicate of Unresolved
MC-17247
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