Huge blocks of sugeno and weighted_mean zeros

[sharatisrani]

pk a5d8b51c-75bf-4ae5-aedb-553de26fa2dc
gives a merged pk of 0673beef-bab8-48de-b04e-1cd5e25265e4
which returns lots of zero sugenos and a huge block of rank 194s (nearly 1000).

This is a known issue, perhaps it's been filed under some other issue, maybe the fix is already underway.