diff --git a/wp-includes/class-wp-locale.php b/wp-includes/class-wp-locale.php
index 38b1860b89..140b93b482 100644
--- a/wp-includes/class-wp-locale.php
+++ b/wp-includes/class-wp-locale.php
@@ -235,7 +235,7 @@ class WP_Locale {
 
 		$this->number_format['decimal_point'] = ( 'number_format_decimal_point' === $decimal_point ) ? '.' : $decimal_point;
 
-		/* translators: used between list items, there is a space after the comma */
+		/* translators: Used between list items, there is a space after the comma. */
 		$this->list_item_separator = __( ', ' );
 
 		// Set text direction.
diff --git a/wp-includes/l10n.php b/wp-includes/l10n.php
index 52a51d5147..eb1a2cc5a9 100644
--- a/wp-includes/l10n.php
+++ b/wp-includes/l10n.php
@@ -1807,6 +1807,12 @@ function translate_settings_using_i18n_schema( $i18n_schema, $settings, $textdom
 function wp_get_list_item_separator() {
 	global $wp_locale;
 
+	if ( ! ( $wp_locale instanceof WP_Locale ) ) {
+		// Default value of WP_Locale::get_list_item_separator().
+		/* translators: Used between list items, there is a space after the comma. */
+		return __( ', ' );
+	}
+
 	return $wp_locale->get_list_item_separator();
 }
 
@@ -1823,5 +1829,10 @@ function wp_get_list_item_separator() {
 function wp_get_word_count_type() {
 	global $wp_locale;
 
+	if ( ! ( $wp_locale instanceof WP_Locale ) ) {
+		// Default value of WP_Locale::get_word_count_type().
+		return 'words';
+	}
+
 	return $wp_locale->get_word_count_type();
 }
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5a10c2ac4f..dc2942647b 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-beta2-55350';
+$wp_version = '6.2-beta2-55351';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.