Bug in fast ddt on trueNAS scale

TrueNAS
1

Hey All,

Found a bug in the pruning of fast DDT within trueNAS scale. Right now (at least on my build) running prune with days, causes essentially all values of rfcnt =1 to be pruned on the system:

https://ixsystems.atlassian.net/browse/NAS-136377?atlOrigin=eyJpIjoiY2UwOWI4MWI5OGVjNGY2Yjk3OGQxMjAwMDRkNTRlOTgiLCJwIjoiaiJ9