In 0.0.15, when the "sell" dialog box opens, one of your items is already selected. Unfortunately, it is selected only graphically and you can't change quantities and sell it. You first have to click on it once again, and then you can change quantities and sell it. A similar problem happens once you have sold a whole type of item: this item disappears from the list, and the next one is automatically selected. But it is yet another graphical-only selection: although it is selected, you first have to click on the new item before being able to act on it.
Thanks for the hard work.
