Autocomplete type doesn't respect empty value choice

Describe the bug

When choices.value is empty (''), the return value of autocomplete is the title instead of the empty string.

To Reproduce

(async () => {
  const response = await prompts({
    type: 'autocomplete',
    name: 'res',
    message: 'Pick your favorite actor',
    choices: [
      { title: 'A', value: 'A-value' },
      { title: 'B', value: '' },
    ]
  });

  console.log(response);
})();

Select B.

Expected behavior

Logs { res: '' }.

Actually logs { res: 'B' }. If the value is non-empty, e.g. if A is selected, then A-value is correctly logged.

If the type is changed to select, then the empty string is correctly logged, making me think this is a bug.

System

• OS: MacOS 11.6.2
• Terminal: Bash
• Node version: 17.2.0