=== WRONG CASE, atomic form: empty the schema + the TRUNCATED copy, ONE transaction
rc=0 in 0.81s
DETAIL:  drop cascades to table kysely_migration
DB state after the failed atomic load (must be the MIGRATED state, untouched): 42  tables | ledger rows: 48 | newest: 20260620T010047-personal-spaces

=== RIGHT CASE, atomic form: empty the schema + the WHOLE copy, ONE transaction
rc=0 in 1.38s
DETAIL:  drop cascades to extension pg_trgm
DB state after (expect 42 tables, 48 ledger rows, newest 20260620T010047-personal-spaces): 42  tables | ledger rows: 48 | newest: 20260620T010047-personal-spaces
extensions: plpgsql,pg_trgm,unaccent
