Fix displaying of multipart/alternative messages with empty parts (#1488750)

Aleksander Machniak

2012-10-12 821d3c49629d3f05cfbe67d0cbd623e482cd0543

 program/include/rcube_message.php

@@ -364,6 +364,10 @@
            foreach ($structure->parts as $p => $sub_part) {
                $sub_mimetype = $sub_part->mimetype;

                // skip empty parts
                if (!$sub_part->size)
                    continue;

                // check if sub part is
                if ($sub_mimetype == 'text/plain')
                    $plain_part = $p;