src/controller/admin/class-image.php
public function replace_old_images() {

		$nonce = isset( $_POST['nonce'] ) ? $_POST['nonce'] : '';

		if ( ! wp_verify_nonce( $nonce, 'eliasis' ) && ! wp_verify_nonce( $nonce, 'customImagesGrifusAdmin' ) ) {
			die( 'Busted!' );
		}

		$this->model->set_posts_to_review();
		$response = $this->model->replace_old_images();

		echo json_encode( $response );

		die();
	}
public function replace_old_images() {

		$nonce = isset( $_POST['nonce'] ) ? $_POST['nonce'] : '';

		if ( ! wp_verify_nonce( $nonce, 'eliasis' ) && ! wp_verify_nonce( $nonce, 'customImagesGrifusAdmin' ) ) {
			die( 'Busted!' );
		}

		$this->model->set_posts_to_review();
		$response = $this->model->replace_old_images();

		echo json_encode( $response );

		die();
	}
Search post not edited previously and replace images.