[Bug]: "required" problem because of empty option at the end of options

[xenatis]

Bug description

When removing any selected option, an empty option element is added at the end of the option list.

For a required select element to be detected by document.foms.myForm.checkValidity() the empty option should be at the top of options.

allowEmptyOption value do not have any impact on this behavior.

Expected behavior

Empty option element should be added at top of the options, not at the end.

Steps to reproduce

1. Go to https://jsfiddle.net/jkqe2fL4/
2. Click on "check" button
3. Look at console. Should be true.
4. Remove Thomas Edison
5. Click on "check" button
6. As there is no selected option, console should show "false". It shows "true".

Additional context

Chrome Version 131.0.6778.204 (Official Build) (64-bit)
Firefox 128.5.0esr (64-bit)
Debian 11

[github-actions]

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