5.19.3

Add methods to the states/allstates table that helps with creating,
updating or remove states in an optimized way

## Advantage of using this function instead of doing a states[key] = {
... }

- If already created, update existing state, and return true if any
value was changed, this can help reduce amount of resources an aura use

- Automatically `return true` when using these functions and any change
was made

## Examples

```Lua
function(states, event, ...)
    if event == "PLAYER_TARGET_CHANGED" then
        if UnitExists("target") then
            -- if state exists it's updated, not replaced
            -- show & changed fields can be skipped
            states:Update("", {
                    name = UnitName("target"),
                    duration = 5,
                    expirationTime = GetTime() + 5,
                    progressType = "timed",
                    autoHide = true
            })
        else
            -- wipe
            states:RemoveAll()
        end
    end
    -- no need to return true
end
```

with clones

```Lua
function(states, event, ...)
    local currentEssence = UnitPower("player", Enum.PowerType.Essence)
    local maxEssence = UnitPowerMax("player", Enum.PowerType.Essence)
    for i = 1, 6 do
        if i > maxEssence then
            states:Remove(i) -- wipe allstates[6]
        else
            local value = currentEssence >= i and 1 or 0
            local newState = {
                progressType = "static",
                value = value,
                total = 1
            }
            states:Update(i, newState)
        end
    end
    -- no need to return true
end
```

WeakAuras/WeakAuras.lua

@@ -18,6 +18,8 @@ local SendChatMessage, UnitInBattleground, UnitInRaid, UnitInParty, GetTime
 local CreateFrame, IsShiftKeyDown, GetScreenWidth, GetScreenHeight, GetCursorPosition, UpdateAddOnCPUUsage, GetFrameCPUUsage, debugprofilestop
   = CreateFrame, IsShiftKeyDown, GetScreenWidth, GetScreenHeight, GetCursorPosition, UpdateAddOnCPUUsage, GetFrameCPUUsage, debugprofilestop
 local debugstack = debugstack
+local GetNumTalentTabs, GetNumTalents = GetNumTalentTabs, GetNumTalents
+local MAX_NUM_TALENTS = MAX_NUM_TALENTS or 40
 
 local ADDON_NAME = "WeakAuras"
 local WeakAuras = WeakAuras
@@ -4036,7 +4038,9 @@ function WeakAuras.GetTriggerStateForTrigger(id, triggernum)
   if (triggernum == -1) then
     return Private.GetGlobalConditionState();
   end
-  triggerState[id][triggernum] = triggerState[id][triggernum] or {}
+  if triggerState[id][triggernum] == nil then
+    triggerState[id][triggernum] = setmetatable({}, Private.allstatesMetatable)
+  end
   return triggerState[id][triggernum];
 end
 
@@ -4365,7 +4369,7 @@ function Private.UpdatedTriggerState(id)
 
   local changed = false;
   for triggernum = 1, triggerState[id].numTriggers do
-    triggerState[id][triggernum] = triggerState[id][triggernum] or {};
+    triggerState[id][triggernum] = triggerState[id][triggernum] or setmetatable({}, Private.allstatesMetatable)
 
     local anyStateShown = false;
 
@@ -4456,7 +4460,6 @@ function Private.UpdatedTriggerState(id)
   end
 
   for triggernum = 1, triggerState[id].numTriggers do
-    triggerState[id][triggernum] = triggerState[id][triggernum] or {};
     for cloneId, state in pairs(triggerState[id][triggernum]) do
       if (not state.show) then
         triggerState[id][triggernum][cloneId] = nil;
@@ -5392,7 +5395,7 @@ function Private.AnchorFrame(data, region, parent, force)
     local anchorParent = GetAnchorFrame(data, region, parent);
     if not anchorParent then return end
     if (data.anchorFrameParent or data.anchorFrameParent == nil
-    or data.anchorFrameType == "SCREEN" or data.anchorFrameType == "UIPARENT" or data.anchorFrameType == "MOUSE") then
+        or data.anchorFrameType == "SCREEN" or data.anchorFrameType == "UIPARENT" or data.anchorFrameType == "MOUSE") then
       local ok = pcall(region.SetParent, region, anchorParent);
       if not ok then
         Private.GetErrorHandlerId(data.id, L["Anchoring"])