skip wipe of data when searching

TradeSkillMaster_AuctionDB/Modules/data.lua

@@ -169,7 +169,7 @@ function Data:ProcessExternalScanData(scanData, groupItems, scanTime)
 	end
 
 	if not next(data) then return end
-	Data:ProcessData(data, groupSet, nil, scanTime or time())
+	Data:ProcessData(data, groupSet, nil, scanTime or time(), true)
 end
 
 --- Process a table of new market scan data.
@@ -177,11 +177,12 @@ end
 -- @param[opt] groupItems Affects how the minBuyout data is wiped. Use nil for regular behavior.
 -- @param[opt] verifyNewAlgorithm Boolean 'true' if you want to benchmark and verify the new market value algorithm.
 -- @param[opt] scanTime Unix time to use for lastScan values.
-function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime)
+-- @param[opt] skipMinBuyoutWipe If true, do not wipe minBuyout data before processing.
+function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime, skipMinBuyoutWipe)
 	-- If we're currently processing data, retry in 0.2 seconds.
 	-- NOTE: This will retry itself over and over until it's able to process.
 	if TSM.processingData then
-		return TSMAPI:CreateTimeDelay(0.2, function() Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime) end)
+		return TSMAPI:CreateTimeDelay(0.2, function() Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime, skipMinBuyoutWipe) end)
 	end
 
 
@@ -191,6 +192,7 @@ function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime)
 	-- NOTE: It's no problem if we leave some items empty with "nil" minBuyout
 	-- values. That's how TSM is supposed to work, with items having an empty "minBuyout"
 	-- if there wasn't any "minBuyout" data for that item in the newest data batch.
+	if not skipMinBuyoutWipe then
 		if groupItems then
 			-- A list of items ("group scan") was provided. Wipe data for those items.
 			for itemString in pairs(groupItems) do
@@ -210,6 +212,7 @@ function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime)
 				TSM:EncodeItemData(itemID)
 			end
 		end
+	end
 
 
 	-- Convert the incoming "scanData" hashmap to a numerically indexed table,