FORMATOPTION cannot be set from mapscript

[flashviewer@…]

$this->msmapobj->outputformat->setOption('OUTPUT_MOVIE', 'MULTIPLE'); does set
the value in the the memory model (since getOption / getFormatOption return the
value), but it's not used what draw() is called and it isnt in the mapfile when
the mapfile is stored to disk.

Since there is no work around (when i set the option in the mapfile and try
changing the value's it crashes during the draw() method) i put the severity to
major. It's a showstopper for my project so i would like to see it fixed

The code i use is the following code:
            $this->msmapobj->selectOutputFormat('swf');
            $this->msmapobj->outputformat->driver = 'SWF';
            $this->msmapobj->outputformat->name = 'swf';
            $this->msmapobj->outputformat->mimetype =
'application/x-shockwave-flash';
            $this->msmapobj->outputformat->extension = 'swf';
            $this->msmapobj->outputformat->imagemode = 'MS_PC256';
            // NEXT LINE AINT WORKING: bug: 
            $this->msmapobj->outputformat->setOption('OUTPUT_MOVIE', 'MULTIPLE');
            // DEPRICATED:
$this->msmapobj->outputformat->setFormatOption('OUTPUT_MOVIE', 'MULTIPLE');				
        
            $this->msmapobj->outputformat->validate() == MS_TRUE || die("Could
not set the output format for $mapfilename");