diff --git a/wp-includes/revision.php b/wp-includes/revision.php
index c40510bc52..fd66c73ded 100644
--- a/wp-includes/revision.php
+++ b/wp-includes/revision.php
@@ -156,7 +156,7 @@ function wp_save_post_revision( $post_id ) {
 		 * @param WP_Post $last_revision     The last revision post object.
 		 * @param WP_Post $post              The post object.
 		 */
-		if ( isset( $last_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', $check_for_changes = true, $last_revision, $post ) ) {
+		if ( isset( $last_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', true, $last_revision, $post ) ) {
 			$post_has_changed = false;
 
 			foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 22ba423ed3..911234f902 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-45600';
+$wp_version = '5.3-alpha-45601';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.