The simple right click being the way to search/auction an item, accidental use of items (flasks!) can happens while being on Auctions and Bids tabs if we forget to select the other tabs first.
Suggestion : the right click should be handled on all tabs to avoid this.

I kinda would like to just have it search on all tabs, though it seems some people really dislike the post listing and prefer to use the inventory so I guess I'll leave that.

Making the post tab an exception is kinda weird though so I simply disabled it on the other 2 tabs for lack of a better idea of what to use it for.

Note that modified clicks (alt/ctrl/shift) still go through (on all tabs).