Clear the guidNameLookup table on zoning to recover some memory.

Omen.lua

@@ -534,7 +534,7 @@ function Omen:OnEnable()
 	--self:RegisterEvent("RAID_ROSTER_UPDATE", "PARTY_MEMBERS_CHANGED") -- Is this needed?
 
 	self:RegisterEvent("PLAYER_UPDATE_RESTING", "UpdateVisible")
-	self:RegisterEvent("PLAYER_ENTERING_WORLD", "UpdateVisible")
+	self:RegisterEvent("PLAYER_ENTERING_WORLD")
 
 	if db.ShowWith.HideWhenOOC then
 		self:RegisterEvent("PLAYER_REGEN_DISABLED", "UpdateVisible")
@@ -679,8 +679,6 @@ function Omen:_toggle(setting)
 end
 
 function Omen:UpdateVisible(event)
-	if event == "PLAYER_ENTERING_WORLD" then manualToggle = false end
-
 	local t = db.ShowWith
 	if not t.UseShowWith or manualToggle then return end
 
@@ -1191,10 +1189,13 @@ function Omen:UpdatePartyGUIDs()
 	if me then -- Because it sometimes is nil on zoning/logging in.
 		guidNameLookup[me] = UnitName("player")
 		_, guidClassLookup[me] = UnitClass("player")
+	else
+		timers.UpdatePartyGUIDs = self:ScheduleTimer("UpdatePartyGUIDs", 0.5)
 	end
 	if UnitExists("pet") then
-		guidClassLookup[UnitGUID("pet")] = "PET"
-		guidNameLookup[UnitGUID("pet")] = UnitName("pet")--.." ["..UnitName("player").."]"
+		local petGUID = UnitGUID("pet")
+		guidClassLookup[petGUID] = "PET"
+		guidNameLookup[petGUID] = UnitName("pet")--.." ["..UnitName("player").."]"
 	end
 
 	if inParty or inRaid then
@@ -1220,9 +1221,15 @@ function Omen:UpdatePartyGUIDs()
 			end
 		end
 	end
+	guidNameLookup["AGGRO"] = L["> Pull Aggro <"]
 	guidClassLookup["AGGRO"] = "AGGRO"
 end
-guidNameLookup["AGGRO"] = L["> Pull Aggro <"]
+
+function Omen:PLAYER_ENTERING_WORLD()
+	manualToggle = false
+	wipe(guidNameLookup)
+	self:PARTY_MEMBERS_CHANGED()
+end
 
 
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