Add detailed crash info when aura owner is not in the same map as target in Aura::UpdateTargetMap.

src/server/game/Entities/Object/Object.h

@@ -669,12 +669,17 @@ class WorldObject : public Object, public WorldLocation
         }
         float GetDistanceZ(const WorldObject* obj) const;
 
+        bool IsSelfOrInSameMap(const WorldObject* obj) const
+        {
+            if (this == obj)
+                return true;
+            return IsInMap(obj);
+        }
         bool IsInMap(const WorldObject* obj) const
         {
             if (obj)
                 return IsInWorld() && obj->IsInWorld() && (GetMap() == obj->GetMap()) && InSamePhase(obj);
-            else
+            return false;
-                return false;
         }
         bool IsWithinDist3d(float x, float y, float z, float dist) const
             { return IsInDist(x, y, z, dist + GetObjectSize()); }

src/server/game/Globals/ObjectAccessor.cpp

@@ -250,12 +250,9 @@ void ObjectAccessor::AddCorpsesToGrid(GridCoord const& gridpair, GridType& grid,
 
     for (Player2CorpsesMapType::iterator iter = i_player2corpse.begin(); iter != i_player2corpse.end(); ++iter)
     {
+        // We need this check otherwise a corpose may be added to a grid twice
         if (iter->second->IsInGrid())
-        {
-            //TODO: add this assert later
-            //ASSERT(iter->second->GetGridCoord() == gridpair);
             continue;
-        }
 
         if (iter->second->GetGridCoord() == gridpair)
         {

src/server/game/Spells/Auras/SpellAuras.cpp

@@ -557,7 +557,14 @@ void Aura::UpdateTargetMap(Unit* caster, bool apply)
         else
         {
             // owner has to be in world, or effect has to be applied to self
-            ASSERT((!GetOwner()->IsInWorld() && GetOwner() == itr->first) || GetOwner()->IsInMap(itr->first));
+            if (!GetOwner()->IsSelfOrInSameMap(itr->first))
+            {
+                //TODO: There is a crash caused by shadowfiend load addon
+                sLog->outCrash("Aura %u: Owner %s (map %u) is not in the same map as target %s (map %u).", GetSpellInfo()->Id,
+                    GetOwner()->GetName(), GetOwner()->IsInWorld() ? GetOwner()->GetMap()->GetId() : uint32(-1),
+                    itr->first->GetName(), itr->first->IsInWorld() ? itr->first->GetMap()->GetId() : uint32(-1));
+                ASSERT(false);
+            }
             itr->first->_CreateAuraApplication(this, itr->second);
             ++itr;
         }