A quarantined test, three deadlines, and a real race

A test skipped since 2023 under a policy with deadlines, extended three times, covering a payment path.

#[Group('flaky')]
#[Ticket('ENG-412', until: '2023-11-01')]   // extended
#[Ticket('ENG-412', until: '2024-06-01')]   // extended
#[Ticket('ENG-412', until: '2025-03-01')]   // extended
public function testAPaymentIsCapturedExactlyOnce(): void

A quarantine deadline that can be extended is a policy with an escape hatch, and three extensions on a test covering payment capture is the shape of a problem nobody wanted. The race it was hiding was real, had been in production for three years, and produced one duplicate capture that had been recorded as a support anomaly in 2024.