Accrual balance reinstatement functionality

Summary: When the 'Allow prior balance reinstatement' option is selected for an accrual plan and tested in a scenario where an employee loses eligibility for the plan despite having a remaining balance, and subsequently regains eligibility, both the prior balance and the annual accrual are reinstated. Has anyone encountered and used this feature before, and is it standard to receive both the prior and annual balances? I had expected only the prior balance to be reinstated.

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