TrinityCore/TrinityCore — pull request #12031 by cr4st (2014-05-08 06:50:03+00:00)
Title: DB/FactionchangeItems: T9 warrior (alliance) to T9 shaman (horde) 

T9 alliance with a horde character you'll get the t9 shaman horde at faction change... is not relevant but also a mistake.