Revisions: Check and return errors for insertions to revisions.

Fixes #30009.

Props rmccue, adamsilverstein, coreymckrill, whyisjake.

Built from https://develop.svn.wordpress.org/trunk@51124


git-svn-id: http://core.svn.wordpress.org/trunk@50733 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/revision.php

@@ -331,7 +331,7 @@ function _wp_put_post_revision( $post = null, $autosave = false ) {
 	$post = _wp_post_revision_data( $post, $autosave );
 	$post = wp_slash( $post ); // Since data is from DB.
 
-	$revision_id = wp_insert_post( $post );
+	$revision_id = wp_insert_post( $post, true );
 	if ( is_wp_error( $revision_id ) ) {
 		return $revision_id;
 	}

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-alpha-51123';
+$wp_version = '5.8-alpha-51124';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.