Given the following option on a command:

.option('my-option', {
          type: 'array',
          desc: "my-desc",
        })

When my-option is not provided via the arguments, command['my-option'] is undefined, as expected.

But when I specify the option this way:

.option('my-option', {
          default: undefined,
          type: 'array',
          desc: "my-desc",
        })

I expect the default value for my-option to be undefined. However I see that the default value becomes [undefined]. This feels out of the ordinary and causes downstream issues when I try to ensure that my-option is undefined.

I would like yargs to respect my provided default and not throw it into an array.