Dry code support to close your headers which were closed before doing a tradeskill scan.

diff --git a/AckisRecipeList.lua b/AckisRecipeList.lua
index 2463a05..b5a7a1f 100644
--- a/AckisRecipeList.lua
+++ b/AckisRecipeList.lua
@@ -763,10 +763,13 @@ do
 	local GetTradeSkillInfo = GetTradeSkillInfo
 	local GetTradeSkillRecipeLink = GetTradeSkillRecipeLink
 	local ExpandTradeSkillSubClass = ExpandTradeSkillSubClass
+	local CollapseTradeSkillSubClass = CollapseTradeSkillSubClass

 	---Scans the recipe listing and marks known recipes as true in the database
 	function addon:ScanForKnownRecipes(RecipeDB, playerData)

+		local headerlist = {}
+
 		-- Clear the "Have Materials" check box
 		-- If Mr Trader is installed
 		if MRTUIUtils_PushFilterSelection then
@@ -790,7 +793,10 @@ do

 			-- Expand all headers so we can see all the recipes there are
 			for i = GetNumTradeSkills(), 1, -1 do
-				local _, tradeType = GetTradeSkillInfo(i)
+				local name, tradeType, _, isExpanded = GetTradeSkillInfo(i)
+				if isExpanded then
+					headerlist[name] = true
+				end
 				if tradeType == "header" then
 					ExpandTradeSkillSubClass(i)
 				end
@@ -829,7 +835,13 @@ do
 		if MRTUIUtils_PopFilterSelection then
 			MRTUIUtils_PopFilterSelection()
 		else
-
+			-- Collapse all headers that were collapsed before
+			for i = GetNumTradeSkills(), 1, -1 do
+				local name, tradeType, _, isExpanded = GetTradeSkillInfo(i)
+				if headerlist[name] then
+					CollapseTradeSkillSubClass(i)
+				end
+			end
 		end

 		playerData.foundRecipes = foundRecipes