Right. Worst case, two candidates with same CoI end up popular enough to otherwise be elected, in which case we may have to look into this, at which point maybe we’ll end up with enough experience for this not to be a concern in future cases.
Now, in the case of same CoI, ‘hope only one turns out popular’ is pretty valid, as we may not otherwise need to have found a technical solution.
Once we do solve this however, I think there would be another potential use-case, given a constitutional change: preserving proportional representation (even if by approximation) in the event delegates step down early, by passing on such seats in a way better respecting the delegate’s voter preferences than the current ‘the seat remains vacant until elections’ or ‘pick the next candidate in the original ranking (without taking into account preferences of the withdrawn candidate)’.