What happened?

Thinking that the {% namespace %} tag should accept 0 as a value, and it currently doesn't. Probably to do with a falsey check, but I can't figure out how that works, sorry!

{% set items = ['first', 'second'] %}

{% for item in items %}
    {% namespace loop.index0 %}
        {{ tag('input', {
            name: item,
        }) }}
    {% endnamespace %}
{% endfor %}

// Produces
<input name="first">
<input name="1[second]">

// Expected
<input name="0[first]">
<input name="1[second]">

In reality, this would be surrounded by fields and the field handle, but in this reduced example, you can't have multiple {% namespace %} tags, so in a real-world use-case you'd produce:

// Expected
<input name="fields[myField][0][first]">
<input name="fields[myField][1][second]">

My use-case here is that the value for a field is an array, and I'd like to keep things simple by using an array syntax, rather than new1 or similar like Matrix does.

Craft CMS version

4.5.9

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