Fix fatal error on revisions with post meta of type array

LAPSrj · LAPSrj · commit 30e68600283f · 2025-11-26T15:23:30.000-08:00
diff --git a/src/wp-includes/revision.php b/src/wp-includes/revision.php
@@ -187,7 +187,7 @@ function wp_save_post_revision( $post_id ) {
 			$post_has_changed = false;
 
 			foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) {
-				if ( normalize_whitespace( $post->$field ) !== normalize_whitespace( $latest_revision->$field ) ) {
+				if ( normalize_whitespace( serialize( $post->$field ) ) !== normalize_whitespace( serialize( $latest_revision->$field ) ) ) {
 					$post_has_changed = true;
 					break;
 				}

Original file line number	Diff line number	Diff line change
`@@ -187,7 +187,7 @@ function wp_save_post_revision( $post_id ) {`
`187`	`187`	`$post_has_changed = false;`
`188`	`188`
`189`	`189`	`foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) {`
`190`		`- if ( normalize_whitespace( $post->$field ) !== normalize_whitespace( $latest_revision->$field ) ) {`
	`190`	`+ if ( normalize_whitespace( serialize( $post->$field ) ) !== normalize_whitespace( serialize( $latest_revision->$field ) ) ) {`
`191`	`191`	`$post_has_changed = true;`
`192`	`192`	`break;`
`193`	`193`	`}`