Years between 0001 and 0100 can't be picked and can't navigate to years before 1900

[nfeldman-at-onshape]

I can set the initial date to 0005-01-01 and the calendar displays correctly, but the actual date has no highlight and selecting any value changes the year to 1905. If I attempt to navigate the calendar to a year before 1900 it refuses. I'd expect to be able to pick any date that JavaScript can represent.