1678: epoch_stake missing entries

[Cmdv]

Description

This PR fixes #1678

Currently trying to log out the slice function as it's not behaving correctly

Checklist

• [ ] Commit sequence broadly makes sense
• [ ] Commits have useful messages
• [ ] New tests are added if needed and existing tests are updated
• [ ] Any changes are noted in the changelog
• [ ] Code is formatted with fourmolu on version 0.10.1.0 (which can be run with scripts/fourmolize.sh)
• [ ] Self-reviewed the diff

Migrations

• [ ] The pr causes a breaking change of type a,b or c
• [ ] If there is a breaking change, the pr includes a database migration and/or a fix process for old values, so that upgrade is possible
• [ ] Resyncing and running the migrations provided will result in the same database semantically

If there is a breaking change, especially a big one, please add a justification here. Please elaborate more what the migration achieves, what it cannot achieve or why a migration is not possible.

[Cmdv]

I'll make some modifications for the isMigration case and we can merge

What modification does it need? I'm happy to make the changes or discuss

[Cmdv]

@kderme what steps do we need to take to get this in? I know you were doing something "I'm assigning the rest to myself for the migration fix." But Right now it would need rework due to the Hasql conversion changing lots of things.

[kderme]

I'll take a look. This may end up being rewritten with the parallel stuf