Indicate that a collapsed thread has flagged children (#5013)

Aleksander Machniak

2016-05-04 344b0af9c6c2f6531504dbc8363faa54ce9c6440

 program/steps/mail/func.inc

@@ -518,6 +518,8 @@
            $a_msg_flags['has_children'] = $header->has_children;
        if ($header->unread_children)
            $a_msg_flags['unread_children'] = $header->unread_children;
        if ($header->flagged_children)
            $a_msg_flags['flagged_children'] = $header->flagged_children;
        if ($header->others['list-post'])
            $a_msg_flags['ml'] = 1;
        if ($header->priority)