Now that the patch is upon us prices in the Auction House are moving quite violently and likely moving to new levels. Hence, it is worth resetting the data of your Auction House addons to make sure the data used is up to date and reflects todays market conditions.
Indeed, i tend to reset my data each quarter anyway to get rid of stale data and certainly whenever patches and new expansions come along.
For Auctioneer the command is: /auc cleardata ALL
For TradeSkillMaster the command is: /tsm adbreset
And of course remember to do a complete scan the Auction House daily. Every gold maker should. Takes 10 to 15 minutes and you can be doing some housework at the same time!