get_store_value() called twice in SSR mode

[tivac]

Describe the bug
I was playing around with trying to repro a bug I'm seeing in SSR mode and happened to notice something weird in the output. Not critical, mind you, but still probably worth fixing?

To Reproduce
REPL repro

Open that REPL link, switch to the "JS Output" tab, and switch from DOM to SSR mode to see the issue.

const App = create_ssr_component(($$result, $$props, $$bindings, $$slots) => {
	let $style;

	let style = readable("foo"); $style = get_store_value(style);

	$style = get_store_value(style);

	return `${escape($style)}`;
});

Expected behavior
I don't think $style = get_store_value(style); should be output twice.

Information about your Svelte project:

• Svelte 3.7.1

Severity
Not very

[Conduitry]

This is finally fixed in 3.31.2 as part of a more sweeping change to how store autosubscriptions are handled in SSR code. See the generated code for https://svelte.dev/repl/d330749826a643cca26d557d1983a623?version=3.31.2