fix

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

@@ -883,7 +883,7 @@ function serialize_inline_component(node, component_name, context, anchor = cont
 				b.init(
 					'children',
 					context.state.options.dev
-						? b.call('$.wrap_snippet', slot_fn, b.id(context.state.analysis.name))
+						? b.call('$.wrap_snippet', b.id(context.state.analysis.name), slot_fn)
 						: slot_fn
 				)
 			);
@@ -2754,7 +2754,7 @@ export const template_visitors = {
 		let snippet = b.arrow(args, body);
 
 		if (context.state.options.dev) {
-			snippet = b.call('$.wrap_snippet', snippet, b.id(context.state.analysis.name));
+			snippet = b.call('$.wrap_snippet', b.id(context.state.analysis.name), snippet);
 		}
 
 		const declaration = b.const(node.expression, snippet);

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

@@ -1187,7 +1187,7 @@ const template_visitors = {
 			return /** @type {import('estree').Expression} */ (context.visit(arg));
 		});
 
-		if (!context.state.skip_hydration_boundaries) {
+		if (node.metadata.dynamic && !context.state.skip_hydration_boundaries) {
 			context.state.template.push(block_open);
 		}
 

packages/svelte/src/internal/client/dom/blocks/snippet.js

@@ -46,10 +46,11 @@ export function snippet(anchor, get_snippet, ...args) {
 /**
  * In development, wrap the snippet function so that it passes validation, and so that the
  * correct component context is set for ownership checks
- * @param {(node: import('#client').TemplateNode, ...args: any[]) => import('#client').Dom} fn
  * @param {any} component
+ * @param {(node: import('#client').TemplateNode, ...args: any[]) => import('#client').Dom} fn
  */
-export function wrap_snippet(fn, component) {
+export function wrap_snippet(component, fn) {
+	// TODO do we need to pass in `component`? surely it's just `dev_current_component_function`?
 	return add_snippet_symbol(
 		(/** @type {import('#client').TemplateNode} */ node, /** @type {any[]} */ ...args) => {
 			var previous_component_function = dev_current_component_function;