2.18.5 (2026-07-19)

Fix

fix: correctly isolate splits when aggregating scores in aggregated tasks (#4897)
fix: correctly isolate splits when aggregating scores in aggregated tasks
test: add regression test for isolated split aggregation in AbsTaskAggregate
chore: format regression test with ruff
test: refactor regression test to use existing MockAggregatedTask
test: fix state leakage in MockAggregatedTask by using model_copy
chore: format test with ruff
test: specify results for both inner tasks of MockAggregatedTask to properly simulate aggregation
feat: validate task results match requested tasks in AbsTaskAggregate
chore: fix import sorting with ruff check
fix: set main_score to None when missing task results instead of raising ValueError
test: add dev split assertion to missing task test
minor fix

Co-authored-by: Kenneth Enevoldsen <kennethcenevoldsen@gmail.com> (023b0b1)