At last some sense!
As background there have been a few cases where the Tenancy Tribunal has awarded a tenant be repaid in full all rent when it was later shown that there was a problem with the building consent. In one case a downstairs area of a house had a minor change made in building that wasn’t put on the plans by the first owners. The tenant then on-rented the downstairs to another party. Later when the main tenant found the error in plans they argued it should never have been rented (note the owner knew nothing of this) and a Tribunal made an odd interpretation that all rent must be refunded. This was bound to need a court to clarify but now another Tribunal hearing has disagreed with that interpretation of the law and gone for common sense.
Remember good old common sense? Well done!