In classic CLEU payload spell ID is always 0, attempt to remap where possible...

In classic CLEU payload spell ID is always 0, attempt to remap where possible before calling CLEU handlers

VuhDoEventHandler.lua

@@ -412,6 +412,16 @@ function VUHDO_OnEvent(_, anEvent, anArg1, anArg2, anArg3, anArg4, anArg5, anArg
 			-- As of 8.x COMBAT_LOG_EVENT_UNFILTERED is now just an event with no arguments
 			anArg1, anArg2, anArg3, anArg4, anArg5, anArg6, anArg7, anArg8, anArg9, anArg10, anArg11, anArg12, anArg13, anArg14, anArg15, anArg16, anArg17 = CombatLogGetCurrentEventInfo();
 
+			-- in classic, CLEU payload for spell ID is always 0
+			-- map this as best we can but lookups outside player spellbook will fail
+			if anArg12 == 0 then
+				local _, _, _, _, _, _, tSpellId = GetSpellInfo(anArg13);
+
+				if tSpellId then
+					anArg12 = tSpellId;
+				end
+			end
+
 			-- SWING_DAMAGE - the amount of damage is the 12th arg
 			-- ENVIRONMENTAL_DAMAGE - the amount of damage is the 13th arg
 			-- for all other events with the _DAMAGE suffix the amount of damage is the 15th arg