fix

packages/svelte/src/compiler/phases/3-transform/server/visitors/VariableDeclaration.js

@@ -98,7 +98,10 @@ export function VariableDeclaration(node, context) {
 				const invalidation_id = /** @type {Identifier} */ (pattern.elements[1]);
 				declarations.push(
 					b.declarator(state_id, value),
-					b.declarator(invalidation_id, b.arrow([b.id('$$fn')], b.chain_call(b.id('$$fn'), state_id)))
+					b.declarator(
+						invalidation_id,
+						b.arrow([b.id('$$fn')], b.chain_call(b.id('$$fn'), state_id))
+					)
 				);
 				continue;
 			}