Version:1.8x
Issue:the entity inside of the said spawner renders offset from the custom pos tags instead of just rendering normally

steps to reproduce:
/give @p mob_spawner 1 0 {MaxNearbyEntities:6s,RequiredPlayerRange:16s,SpawnCount:4s,display:{EntName:"entity.Skeleton.name",EntColor:"type_ranged"},silkTag:"minecraft:skeleton",SpawnData:{offsets:[-2.0d,1.0d,4.0d],id:"minecraft:skeleton"},MaxSpawnDelay:800s,SpawnRange:4s,Delay:20,MinSpawnDelay:200s,SpawnPotentials:[{Entity:{offsets:[-2.0d,1.0d,4.0d],id:"minecraft:skeleton"},Weight:1},{Entity:{offsets:[-2.0d,1.0d,4.0d],id:"minecraft:creeper"},Weight:1}]}
place spawner and watch the item stack not only get modified but, also break