Combobox results in `Uncaught Error: Unexpected undefined` when there is no match

[qu8n]

What component (if applicable)

• Component name: Combobox

Describe the bug
When the combobox fails to match the text input, we get a console error Uncaught Error: Unexpected undefined.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://catalyst.tailwindui.com/docs/combobox
2. Open the browser's Dev Tools console
3. Click on the first combobox on the page
4. Clear the placeholder text
5. Type "jo" or any substring not found in the list
6. See error

In step 5, alternatively we can also type " tom cook" or "tom cook " (with an extra space at the beginning or the end), and the same error occurs even though "tom cook" has a match.

Expected behavior
No console error.

Screenshots
https://github.com/user-attachments/assets/39d2a63c-b624-4cf8-a800-d2a7de05c394

Browser/Device (if applicable)

• OS: macOS
• Browser:
  • Chrome v136.0.7103.49 (Official Build) (arm64)
  • Brave v1.78.94 Chromium: 136.0.7103.60 (Official Build) (arm64)

Additional context

More details on the console error:

Unhandled Runtime Error
    Error: Unexpected undefined

Call Stack
    notUndefined
        node_modules/@tanstack/virtual-core/dist/esm/utils.js (50:1)
    eval
        node_modules/@tanstack/virtual-core/dist/esm/index.js (666:48)