remove proxy assign derived

packages/svelte/src/compiler/phases/3-transform/client/utils.js

@@ -50,6 +50,7 @@ export function build_getter(node, state) {
  * @param {PrivateIdentifier | string} proxy_reference
  */
 export function build_proxy_reassignment(value, proxy_reference) {
+	debugger
 	return dev
 		? b.call(
 				'$.proxy',

packages/svelte/src/compiler/phases/3-transform/client/visitors/AssignmentExpression.js

@@ -109,7 +109,10 @@ function build_assignment(operator, left, right, context) {
 			context.state.analysis.runes &&
 			should_proxy(value, context.state.scope)
 		) {
-			value = binding.kind === 'raw_state' ? value : build_proxy_reassignment(value, object.name);
+			value =
+				binding.kind === 'raw_state' || binding.kind === 'derived'
+					? value
+					: build_proxy_reassignment(value, object.name);
 		}
 
 		return transform.assign(object, value);