[Bug]: Empty value options not hidden when selected in multi-select mode with allowEmptyOption enabled

[llr114]

Bug description

When using Tom Select in multi-select mode with allowEmptyOption: true, options with empty values value="" are not properly removed from the dropdown menu after being selected, despite hideSelected being enabled by default in multi-select mode.

Expected behavior

In multi-select mode with allowEmptyOption: true, selected options with empty values should be hidden from the dropdown menu

Steps to reproduce

Select the "AA" option → observe it remains visible in dropdown

<select id="test" multiple>
  <option value="">AA</option>
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
</select>

<script>
new TomSelect('#test', {
  allowEmptyOption: true
});
</script>

Additional context

• OS: macOS
• Browser chrome
• Version 2.4.3
• Device: MacBook Air

[llr114]

The problem seems to be that an empty string "" is treated as a falsy value in the check at tom-select.ts#L1370.

Changing hashed && ... to hashed !== null && ... should fix it by correctly handling empty string values.

I'm happy to create a PR for this if that's okay.

[hidr0]

I have the same problem as well.