The team-filter test was passing regardless of the subquery pattern
because each worker was on only one team — no cardinality to inflate.
Fixture now puts both workers on both teams so a naive
worker__teams__id__in filter would return 6 rows (2 teams × 3
adjustments). The type-filter test now passes BOTH Bonus AND Deduction
so it exercises the multi-select code path (not just a single value).
Both assertions use adj_total_count (.count() at queryset level) so
regressions blow up at aggregation rather than just the paginator page.
89f109afb4