Setting a `defaultMonth` the next year when using the `dropdown` mode does not render the calendar.

[drac94]

Hey, not sure if this is a bug or a feature but setting a default month in the future (next year) when using the dropdown mode results in the calendar not being rendered, to solve it I need to add and end month but not sure if this is the correct way.

To reproduce

• Just add a component with a default month the year after you are right now

import { DayPicker } from "react-day-picker";
import "react-day-picker/style.css";

export default function App() {
  return  (
    <DayPicker
        hideNavigation
        captionLayout="dropdown"
        defaultMonth={new Date("2026/07/05")}
      />
  )
}

CodeSandbox: https://codesandbox.io/p/sandbox/4zg6k5

Actual Behavior

Calendar is not rendered

Expected Behavior

Calendar should be rendered.

[rodgobbi]

@drac94 thanks for reporting it 👍
I'll prepare a fix soon.