diff --git a/wp-includes/load.php b/wp-includes/load.php
index 9780519856..02bf0299bf 100644
--- a/wp-includes/load.php
+++ b/wp-includes/load.php
@@ -948,10 +948,6 @@ function wp_get_active_and_valid_themes() {
 		return $themes;
 	}
 
-	if ( ! wp_using_themes() ) {
-		return $themes;
-	}
-
 	if ( TEMPLATEPATH !== STYLESHEETPATH ) {
 		$themes[] = STYLESHEETPATH;
 	}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index c9aafc73cb..caa3b74019 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-55890';
+$wp_version = '6.3-alpha-55891';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.