align

packages/svelte/src/internal/client/reactivity/deriveds.js

@@ -457,16 +457,14 @@ export function update_derived(derived) {
 	// traversal of the graph in the other batches still happens
 	if (
 		batch_values !== null ||
-		(!current_batch &&
+		// "read outside of reactivity", e.g. in an event handler
-			first_batch?.next) /* means "read outside of reactivity, e.g. in an event hanlder" */
+		(!current_batch && first_batch?.next)
 	) {
 		// only cache the value if we're in a tracking context, otherwise we won't
 		// clear the cache in `mark_reactions` when dependencies are updated
 		if (effect_tracking() || current_batch?.is_fork) {
 			batch_values?.set(derived, value);
 		}
-		// if (derived.v === value) set_signal_status(derived, MAYBE_DIRTY);
-		// if (!current_batch?.is_fork) set_signal_status(derived, MAYBE_DIRTY);
 		if (derived.v !== UNINITIALIZED) set_signal_status(derived, MAYBE_DIRTY);
 	} else {
 		update_derived_status(derived);

packages/svelte/src/internal/client/reactivity/sources.js

@@ -38,7 +38,8 @@ import {
 	eager_block_effects,
 	schedule_effect,
 	legacy_updates,
-	current_batch
+	current_batch,
+	first_batch
 } from './batch.js';
 import { proxy } from '../proxy.js';
 import { execute_derived } from './deriveds.js';
@@ -207,8 +208,11 @@ export function internal_set(source, value, updated_during_traversal = null) {
 
 			// During time traveling we don't want to reset the status so that
 			// traversal of the graph in the other batches still happens
-			// TODO
+			if (
-			if (batch_values === null) {
+				batch_values === null &&
+				// could also be "read outside of reactivity", e.g. in an event handler
+				!first_batch?.next
+			) {
 				update_derived_status(derived);
 			}
 		}