Recently, migration programs in onflow/flow-go added a flag to filter out old unreferenced slabs and onflow/atree added some functions to support that. However, some of the old unreferenced slabs are not filtered.
This issue only affects this new migration feature in onflow/flow-go:
After looking into this today, it is clear that traversal needs to go deeper to handle nested storage id inside another storable such as Cadence SomeValue. Update the code to do this and add more tests.
Recently, migration programs in
onflow/flow-goadded a flag to filter out old unreferenced slabs andonflow/atreeadded some functions to support that. However, some of the old unreferenced slabs are not filtered.This issue only affects this new migration feature in
onflow/flow-go:More info:
Suggestion
After looking into this today, it is clear that traversal needs to go deeper to handle nested storage id inside another storable such as Cadence
SomeValue. Update the code to do this and add more tests.