Quote Originally Posted by Shadowtester View Post
It will resume in the middle of the wu you do not need to delete the work folder if you do that it can not resume it will have to start a new wu and you will loose any credit for the work you had done on that wu.
I could look it up if you doubt me but there been reported and confirmed cases on which a new core would not like to continue a wu in progress, 100% sure on that. There mostly isolated cases though but still I would say be prudent and be safe. If you have to choose between doing a mid wu change or having the client run overnight/weekend with an older core I'd say take the risk as the gains are usuaully big enough to warrant loosing a single wu then, but in other cases I would definetly use -oneunit.