Because all of her HSA distributions were 100% for medical expenses, it won't matter whether or not they were made before she turned 65 or not - they will all be allowed tax-free.
It makes a difference only if there was an HSA distribution that was not for qualified medical expenses - there would be a 20% penalty in that case. But once you turn 65, the HSA becomes like a funny IRA - when you withdraw dollars, you owe only normal income tax and no penalty. Of course, the HSA is a "magic" IRA because any distributions will always be tax-free when made for qualified medical expenses, no matter the age.
As for the workaround, I would advise you to check form 8889 just before filing, to make sure that January is labelled correctly on line 18 - do this in Forms mode, not using the Step-by-step interview.
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