wrong server-side rendering of attributes with true value when spreading props

[wild-dino]

Describe the bug

As is
The combination of prop spreading and passing attributes that should have an explicit true value leads to wrong server-side rendering. The same issue is described here: #6121 but the bug reappears when using the spread props, for example, when passing {...$$restProps}. It seems like this behavior is violated here:

svelte/packages/svelte/src/runtime/internal/ssr.js

Line 39 in abf2573

if (value === true) str += ' ' + name;

Expected to be
Render attr="" when the value passed to it is true if it's a boolean attribute. In the case of any other attribute, attr="true" should be rendered instead (as it is when using DOM rendering).

Reproduction

<script>
	let disabled = true;
</script>

<button {...$$restProps} aria-disabled={disabled}>
<slot/>
</button>

Logs

No response

System Info

Doesn't matter for this bug

Severity

annoyance

[devunt]

I'm having the same issue with aria-selected attribute.

[dummdidumm]

Fixed in Svelte 5