On 10/18/2017 11:28 AM, Ken Brown wrote: > Similar considerations apply to the other public member functions of > SolvableVersion.  So my inclination is to go with something like my > patch... ...with perhaps one tweak. Maybe we should test 'id' rather than 'pool', since id being 0 is what's used elsewhere to characterize the empty package. And if id != 0 but pool == 0, there's a bug that we want to catch. Revised patch attached. Ken