QUEST WATCH UPDATE

Seems to fire each time the objectives of the quest with the supplied questID update, i.e. whenever a partial objective has been accomplished: killing a mob, looting a quest item etc.
 QUEST_WATCH_UPDATE: questID
==Payload==
:;questID:
==Details==
* UNIT_QUEST_LOG_CHANGED and QUEST_LOG_UPDATE both also seem to fire consistently – in that order – after each QUEST_WATCH_UPDATE.
==Patch changes==