onConflict: clause needed to allow upgrade of Metcello
onConflict: clause needed to allow upgrade of Metcello

demarey/metacello-work,seandenigris/metacello-work,krono/metacello-work,Metacello/metacello,dalehenrich/metacello-work,krono/metacello-work,pharo-project/pharo-metacello,pharo-project/pharo-metacello,demarey/metacello-work,dalehenrich/metacello-work,StephanEggermont/metacello-work,StephanEggermont/metacello-work,seandenigris/metacello-work