diff --git src/wp-admin/includes/template.php src/wp-admin/includes/template.php
index 302e9b4..3ac7b5a 100644
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function meta_form( $post = null ) { |
677 | 677 | * @param int $limit Number of custom fields to retrieve. Default 30. |
678 | 678 | */ |
679 | 679 | $limit = apply_filters( 'postmeta_form_limit', 30 ); |
680 | | $sql = "SELECT meta_key |
| 680 | $sql = "SELECT DISTINCT meta_key |
681 | 681 | FROM $wpdb->postmeta |
682 | | GROUP BY meta_key |
| 682 | WHERE meta_key NOT BETWEEN '_' AND '_z' |
683 | 683 | HAVING meta_key NOT LIKE %s |
684 | 684 | ORDER BY meta_key |
685 | 685 | LIMIT %d"; |