#1643 negative goods in stockpile

[louis marchant]

we all know that if you place good on a market they
still show under the 'on planet' column in stockpile.
just that they also show in the 'on market' too.

howether thewe goods since they show in 'on planet' are
detected as available, as far as construction is
concerned, so you can still build with them. Giving you
negative goods in your stockpile.