Noting that this is related to the fact that item and record buckets can contain duplicate rows - see related bugs:
https://bugs.launchpad.net/evergreen/+bug/1814183
https://bugs.launchpad.net/evergreen/+bug/1873888
https://bugs.launchpad.net/evergreen/+bug/1771568
https://bugs.launchpad.net/evergreen/+bug/1485695
Ideally, a more complete solution would be for the database to prevent duplicate rows from being added to any bucket.
Noting that this is related to the fact that item and record buckets can contain duplicate rows - see related bugs:
https:/ /bugs.launchpad .net/evergreen/ +bug/1814183
https:/ /bugs.launchpad .net/evergreen/ +bug/1873888
https:/ /bugs.launchpad .net/evergreen/ +bug/1771568
https:/ /bugs.launchpad .net/evergreen/ +bug/1485695
Ideally, a more complete solution would be for the database to prevent duplicate rows from being added to any bucket.