added test for recently fixed crctx bug of duplicate commods
added test for recently fixed crctx bug of duplicate commods

mbmcgarry/cyclus,Baaaaam/cyclus,Baaaaam/cyclus,mbmcgarry/cyclus,gidden/cyclus,hodger/cyclus,rwcarlsen/cyclus,mbmcgarry/cyclus,hodger/cyclus,rwcarlsen/cyclus,hodger/cyclus,hodger/cyclus,Baaaaam/cyclus,rwcarlsen/cyclus,gidden/cyclus,rwcarlsen/cyclus,mbmcgarry/cyclus,gidden/cyclus,hodger/cyclus,gidden/cyclus