Description

Fixes a bug which marks valid dates as invalid in a react form.

Manual testing steps

1. Set your location or timezone in your browser to something in america or canada (I used this guide and set mine to the built in "San Francisco" location)
2. Follow the reproduction steps in the linked issue

Issues

• React DateField's always flagged as invalid #1772

Pull request checklist

• The target branch is correct
  • See picking the right version
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• Code changes follow our coding conventions
• This change is covered with tests (or tests aren't necessary for this change)
• Any relevant User Help/Developer documentation is updated; for impactful changes, information is added to the changelog for the intended release not needed
• CI is green