Save auction favorites, so that you can load them while Blizzard cannot.
=== Update ===
It seems Blizzard's recent update solve the bug. This addon is not very useful as before. But you can still use it to transfer your auction favorites to your alts.
There will be a "Load" button next to the Favorite Search button if the In-game favorite list is not the same as the list saved by this addon.
You can click it to load your saved favorites.