Core/Spells: Fix infinite loop

Port From (https://github.com/TrinityCore/TrinityCore/commit/e6e73b7b13ddc48f98f46d1af13a95b9cf67cccd)

Source/Game/Entities/Unit/Unit.Movement.cs

@@ -847,10 +847,14 @@ namespace Game.Entities
             {
                 if (_lastLiquid != null && _lastLiquid.SpellID != 0)
                     RemoveAurasDueToSpell(_lastLiquid.SpellID);
+
                 Player player = GetCharmerOrOwnerPlayerOrPlayerItself();
+
+                // Set _lastLiquid before casting liquid spell to avoid infinite loops
+                _lastLiquid = curLiquid;
+
                 if (curLiquid != null && curLiquid.SpellID != 0 && (!player || !player.IsGameMaster()))
                     CastSpell(this, curLiquid.SpellID, true);
-                _lastLiquid = curLiquid;
 
                 // mount capability depends on liquid state change
                 UpdateMountCapability();

Source/Game/Spells/Spell.cs

@@ -3174,7 +3174,10 @@ namespace Game.Spells
                 if (spellInfo != null && spellInfo.IconFileDataId == 134230)
                 {
                     Log.outDebug(LogFilter.Spells, "Statue {0} is unsummoned in spell {1} finish", unitCaster.GetGUID().ToString(), m_spellInfo.Id);
-                    unitCaster.SetDeathState(DeathState.JustDied);
+                    // Avoid infinite loops with setDeathState(JUST_DIED) being called over and over
+                    // It might make sense to do this check in Unit::setDeathState() and all overloaded functions
+                    if (unitCaster.GetDeathState() != DeathState.JustDied)
+                        unitCaster.SetDeathState(DeathState.JustDied);
                     return;
                 }
             }