handle edge case where navigating back to AddWorkEmail page causes flow disruption

[blimpich]

Issue is described here. This is a backend issue. This doesn't block anything though because it's kind of an edge case.

[melvin-bot]

⚠️ Looks like this issue was linked to a Deploy Blocker here

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[blimpich]

#60372

[blimpich]

https://github.com/Expensify/Auth/pull/14996