fix

packages/svelte/src/compiler/phases/1-parse/read/style.js

@@ -183,8 +183,7 @@ function read_selector(parser, inside_pseudo_class = false) {
 				is_global: false,
 				is_host: false,
 				is_root: false,
-				scoped: false,
-				selected: new Set()
+				scoped: false
 			}
 		};
 	}

packages/svelte/src/compiler/phases/2-analyze/css/css-prune.js

@@ -45,8 +45,7 @@ const nesting_selector = {
 		is_global: false,
 		is_host: false,
 		is_root: false,
-		scoped: false,
-		selected: new Set()
+		scoped: false
 	}
 };
 
@@ -158,7 +157,8 @@ function apply_selector(relative_selectors, rule, element, stylesheet) {
 							if (name === ' ' || crossed_component_boundary) {
 								mark(parent_selectors[parent_selectors.length - 1], parent);
 							} else {
-								parent_selectors[parent_selectors.length - 1].metadata.selected.add(parent);
+								parent.metadata.scoped = true;
+								// parent_selectors[parent_selectors.length - 1].metadata.selected.add(parent);
 							}
 
 							parent_matched = true;
@@ -230,7 +230,7 @@ function apply_selector(relative_selectors, rule, element, stylesheet) {
  */
 function mark(relative_selector, element) {
 	relative_selector.metadata.scoped = true;
-	relative_selector.metadata.selected.add(element);
+	element.metadata.scoped = true;
 }
 
 /**

packages/svelte/src/compiler/phases/3-transform/css/index.js

@@ -262,15 +262,6 @@ const visitors = {
 
 		context.next();
 	},
-	RelativeSelector(node, context) {
-		if (node.metadata.scoped) {
-			for (const element of node.metadata.selected) {
-				element.metadata.scoped = true;
-			}
-		}
-
-		context.next();
-	},
 	PseudoClassSelector(node, context) {
 		if (node.name === 'is' || node.name === 'where') {
 			context.next();

packages/svelte/src/compiler/types/css.ts

@@ -56,7 +56,6 @@ export interface RelativeSelector extends BaseNode {
 		is_host: boolean;
 		is_root: boolean;
 		scoped: boolean;
-		selected: Set<RegularElement | SvelteElement>;
 	};
 }