Merge remote-tracking branch 'origin/master' into 4.3.4

Conflicts:
	src/server/game/AI/EventAI/CreatureEventAI.cpp
	src/server/scripts/Kalimdor/zone_desolace.cpp

1 files changed, 3 insertions, 0 deletions

diff --git a/src/server/game/Combat/HostileRefManager.cpp b/src/server/game/Combat/HostileRefManager.cpp
index 4cd76b4e7a2..1e550596368 100644
--- a/src/server/game/Combat/HostileRefManager.cpp
+++ b/src/server/game/Combat/HostileRefManager.cpp
@@ -35,6 +35,9 @@ HostileRefManager::~HostileRefManager()
 
 void HostileRefManager::threatAssist(Unit* victim, float baseThreat, SpellInfo const* threatSpell)
 {
+    if (getSize() == 0)
+        return;
+
     HostileReference* ref = getFirst();
     float threat = ThreatCalcHelper::calcThreat(victim, iOwner, baseThreat, (threatSpell ? threatSpell->GetSchoolMask() : SPELL_SCHOOL_MASK_NORMAL), threatSpell);
     threat /= getSize();