Async when causes unexpected behavior

[baileyherbert]

Platforms: Windows 10, 11
Node versions: 14, 16

When a prompt has an async when which returns false after some time, the next prompt will not start registering input until the enter key is pressed, and the question is duplicated.

• If the async when resolves immediately, or within a single tick (e.g. setTimeout with 1ms) then the issue does not occur.
• If when is set to false directly, the issue also does not occur.

Reproduced on both the latest version 8.2.0 and the much older 6.5.0.

Here's an example:

And the code used:

const inquirer = require('inquirer');

(async function () {
	await inquirer.prompt({
		name: 'cancelled',
		type: 'input',
		message: 'Enter some text (hidden)',
		when: async () => {
			// Set this timeout to 0, 1 or remove it and the issue goes away??
			await new Promise(r => setTimeout(r, 50));
			return false
		}
	});

	console.log(await inquirer.prompt({
		name: 'input1',
		type: 'input',
		message: 'Enter some text (#1)'
	}));

	console.log(await inquirer.prompt({
		name: 'input2',
		type: 'input',
		message: 'Enter some text (#2)'
	}));
})();

[nofear-js]

The same effect occurs with async validate.