mastercoin-MSC/spec — pull request #39 by maran (2014-01-20 19:26:56+00:00)
Title: Remove the ability to change a sell order without cancelling it first

This pull request could replace #38.

The general idea is to remove the ability to change a sell order without cancelling the existing one first. This should remove the race condition where you end up broadcasting a new order instead of changing the old one.