Calendar with year dropdown: Cannot read properties of undefined (reading 'label')

[Coronon]

Describe the bug

When using the Calendar component with the year selector dropdown, going to the last selectable year and month and using the right arrow to go to the next month (and year) an error will be thrown and the component stops functioning. This seems to be caused by the calendar-year-select.svelte component trying to read selectedYearItem.label in {yearItems.find((item) => item.value === value)?.label || selectedYearItem.label} where selectedYearItem is undefined.

Reproduction

https://shadcn-svelte.com/docs/components/calendar

Go to December 2035 and click the right arrow to go to January 2036 -> error!

Logs

Uncaught TypeError: Cannot read properties of undefined (reading 'label')

	in <unknown>
	in calendar-year-select.svelte
	in calendar-year-select.svelte
	in calendar-caption.svelte
	in calendar-header.svelte
	in calendar-header.svelte
	in calendar-month.svelte
	in calendar-months.svelte
	in calendar.svelte
	in calendar.svelte
	in ...

System Info

System:
    OS: macOS 15.6
    CPU: (12) arm64 Apple M2 Max
    Memory: 6.73 GB / 64.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.6.0 - /opt/homebrew/bin/node
    npm: 11.5.1 - /opt/homebrew/bin/npm
    pnpm: 10.14.0 - /opt/homebrew/bin/pnpm
  Browsers:
    Chrome: 138.0.7204.184
    Safari: 18.6

Severity

annoyance