Fatal error in upload.module line 907 and duplicate images (also imagefield module, same code problem)

Fatal error: Cannot pass parameter 1 by reference in [removed]/public_html//modules/upload.module on line 907

and the image is added twice

line 907 is $function('imagefield_js', $form);

I commented out line 907, now the module is working without an error and without generating duplicate images

I had the same problem in the D5 imagefield module, and commenting out line 1170 (same code as here) fixed the problem.