| 1 | Index: wp-includes/meta.php |
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| 2 | =================================================================== |
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| 3 | --- wp-includes/meta.php (revision 18324) |
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| 4 | +++ wp-includes/meta.php (working copy) |
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| 5 | @@ -588,8 +588,12 @@ |
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| 6 | * @return bool True if the key is protected, false otherwise. |
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| 7 | */ |
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| 8 | function is_protected_meta( $meta_key, $meta_type = null ) { |
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| 9 | - $protected = ( '_' == $meta_key[0] ); |
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| 10 | + $protected = false; |
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| 11 | + $protected_keys = array( '_edit_last', '_edit_lock', '_thumbnail_id' ); |
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| 12 | |
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| 13 | + if ( 0 === strpos( $meta_key, '_wp_' ) || 0 === strpos( $meta_key, '_menu_item_' ) || in_array( $meta_key, $protected_keys ) ) |
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| 14 | + $protected = true; |
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| 15 | + |
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| 16 | return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type ); |
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| 17 | } |
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| 18 | |
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