- Add User.id != primary.id filter to referred_by_id reassignment to
prevent self-referral loops when primary was referred by secondary
- Clear primary.referred_by_id if it pointed to secondary
- Add exclusion filter to ReferralEarning.referral_id reassignment to
prevent user_id == referral_id rows
- Invalidate refresh tokens for BOTH primary and secondary during merge
(primary gets a fresh session after merge)
- Fix duplicate step 4 comment numbering in execute_merge_endpoint
- Add referred_by_id field to test fixture _make_user
Fringg
db61365e11