TrinityCore/TrinityCore — comment on commit c91ec2eede69f53bccd362a04dc842d570d256bd
File: sql/updates/world/2012_02_18_05_world_creatures.sql line 1
By DDuarte:

Those guids do not have a path_id defined in creature_addon, that means it shouldn't have MovementType 2.
If it has spawndist == 0, set MovType = 0 (nothing)
If it has spawndist != 0, set MovType = 1 (random movement)