Any IO/CO working your application for the LTSSL work to residence visa would have no jurisdiction over your admission as a visitor before their work was complete.
Your getting a visitor's visa (or not), if you applied for it from the UK in advance (by this route
https://www.immigration.govt.nz/new-...-visa#criteria, explaining yourself, not visa waiver), would come under a totally different department for consideration.
And if you arrived at a NZ airport trying for visa waiver entry, the matter would be under the discretion of immigration officials on duty there on the day. You can sometimes get a glimpse of this procedure in action on this programme.
https://w.uktv.co.uk/shows/border-patrol/episodes/