log channel sync prefix mismatch

TradeSkillMaster_AuctionDB/Modules/ChannelSync.lua

@@ -300,8 +300,16 @@ local function MergeIncomingData(payload, sender)
 end
 
 function ChannelSync:OnChannelMessage(_, msg, source, _, _, _, _, _, channelName)
-	if channelName ~= CHANNEL_NAME then return end
+	if channelName ~= CHANNEL_NAME then
-	if strsub(msg or "", 1, #COMM_PREFIX) ~= COMM_PREFIX then return end
+		if strsub(msg or "", 1, #COMM_PREFIX) == COMM_PREFIX then
+			DebugPrint("Prefix received on channel '" .. tostring(channelName) .. "' (expected '" .. CHANNEL_NAME .. "').")
+		end
+		return
+	end
+	if strsub(msg or "", 1, #COMM_PREFIX) ~= COMM_PREFIX then
+		DebugPrint("Message on channel without prefix: '" .. strsub(msg or "", 1, #COMM_PREFIX) .. "'.")
+		return
+	end
 
 	source = ("-"):split(source or "")
 	if strlower(source or "") == strlower(UnitName("player") or "") then return end