includes/engine/class-tmdo-entity-migration-engine.php

@@ -278,6 +278,15 @@ final class TMDO_Entity_Migration_Engine {
 			}
 		}
 
+		// REPLACE drops columns it is not given: keep a post row's status/date
+		// copies, or one NULL row turns the copy route off for the group (2.4 PR-127).
+		if ( 'post' === $entity_type && class_exists( 'TMDO_Post_Status_Sync' ) ) {
+			foreach ( TMDO_Post_Status_Sync::insert_columns( $entity_id, $group_name ) as $col => $value ) {
+				$data[ $col ] = $value;
+				$formats[]    = '%s';
+			}
+		}
+
 		if ( $dry_run ) {
 			return true;
 		}

tests/integration/PostStatusSyncTest.php

@@ -25,6 +25,7 @@ class PostStatusSyncTest extends TestCase {
 			'includes/adapters/class-tmdo-adapter-post.php',
 			'includes/engine/class-tmdo-hook-bus.php',
 			'includes/engine/class-tmdo-post-status-sync.php',
+			'includes/engine/class-tmdo-entity-migration-engine.php',
 		) as $file ) {
 			require_once $base . $file;
 		}
@@ -173,6 +174,30 @@ class PostStatusSyncTest extends TestCase {
 		$this->assertNotContains( 'post_status', $wpdb->get_col( 'SHOW COLUMNS FROM `' . self::A . '`' ) );
 	}
 
+	/**
+	 * The migration engine (backfill, drift-check --fix) REPLACEs whole rows:
+	 * without the copies, a rebuilt row had NULL post_status, which turns the
+	 * status/date copy route off for the whole group (2.4 PR-127).
+	 */
+	public function test_a_row_rebuilt_from_native_keeps_its_copies(): void {
+		global $wpdb;
+		TMDO_Post_Status_Sync::run();
+		$GLOBALS['_wp_posts'][2] = (object) array( 'ID' => 2, 'post_type' => 'hp_listing', 'post_status' => 'draft', 'post_date' => '2026-02-01 10:00:00' );
+		$GLOBALS['_wp_posts'][3] = (object) array( 'ID' => 3, 'post_type' => 'hp_listing', 'post_status' => 'pending', 'post_date' => '2026-03-01 10:00:00' );
+		$wpdb->query( "CREATE TABLE IF NOT EXISTS `{$wpdb->postmeta}` ( meta_id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT, post_id BIGINT UNSIGNED NOT NULL DEFAULT 0, meta_key VARCHAR(255) DEFAULT NULL, meta_value LONGTEXT, PRIMARY KEY (meta_id) ) ENGINE=InnoDB" );
+		try {
+			$wpdb->query( "INSERT INTO `{$wpdb->postmeta}` (post_id, meta_key, meta_value) VALUES (2, 'k', 'a2-native'), (3, 'k', 'a3-native')" );
+
+			WPDO_Entity_Migration_Engine::migrate_entity( 'post', 'ps_a', 2 ); // Existing row.
+			WPDO_Entity_Migration_Engine::migrate_entity( 'post', 'ps_a', 3 ); // New row.
+		} finally {
+			$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->postmeta}`" );
+		}
+
+		$this->assertSame( array( 'draft', '2026-02-01 10:00:00' ), $this->copies( self::A )[2] );
+		$this->assertSame( array( 'pending', '2026-03-01 10:00:00' ), $this->copies( self::A )[3] );
+	}
+
 	public function test_flat_write_that_creates_a_row_fills_the_copies(): void {
 		TMDO_Post_Status_Sync::run();
 		$mode = new ReflectionProperty( WPDO_Mode_Manager::class, 'cache' );