Update more meta when Enable Media Replace replaces a file

emr-do-more.php

<?php
// this gist is an example for updating a custom array-meta-data whenever EMR replaces a media file and renames it.
add_action('enable-media-replace-upload-done', 'more_to_do_emr');
function more_to_do_emr( $new_guid ) {
	global $wpdb;
	// get attachments meta data
	$attachment_id = (int) $_POST["ID"];
	if (!$attachment_id)
		return;
	$meta_ids = $wpdb->get_col("SELECT meta_id FROM {$wpdb->postmeta} where meta_key = 'attachments' AND meta_value LIKE '%i:{$attachment_id};%'");
	foreach ($meta_ids as $meta_id) {
		$meta = get_post_meta_by_id( $meta_id );
		if (is_array($meta->meta_value) && count($meta->meta_value) > 0) {
			foreach ($meta->meta_value as $id => $value) {
				if ($id == $attachment_id) {
					$meta->meta_value[ $id ] = wp_get_attachment_url( $attachment_id );
				}
			}
			update_post_meta( $meta->post_id, $meta->meta_key, $meta->meta_value );
		}
	}
}