note 102500 added to mysqli-result.fetch-field-direct

If I have a query like this:

$query = "SELECT SUBSTR(colname,1,20) AS 'Pretty' FROM table";

when I use $fieldInfo = $result->fetch_fields() , $field->orgname is NOT 'colname' but ''
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Server IP: 69.147.83.197
Probable Submitter: 130.155.181.130
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Manual Page -- http://www.php.net/manual/en/mysqli-result.fetch-field-direct.php
Edit        -- https://master.php.net/note/edit/102500
Del: integrated  -- https://master.php.net/note/delete/102500/integrated
Del: useless     -- https://master.php.net/note/delete/102500/useless
Del: bad code    -- https://master.php.net/note/delete/102500/bad+code
Del: spam        -- https://master.php.net/note/delete/102500/spam
Del: non-english -- https://master.php.net/note/delete/102500/non-english
Del: in docs     -- https://master.php.net/note/delete/102500/in+docs
Del: other reasons-- https://master.php.net/note/delete/102500
Reject      -- https://master.php.net/note/reject/102500
Search      -- https://master.php.net/manage/user-notes.php