bug with batch mode

[DaniBodor]

// bug with batch mode:
/*
Error: The product of channels (1), slices (1)
and frames (15) must equal the stack size (1). in line 511:
(called from line 129)

	run ( "Properties..." , "channels=1 slices=1 frames=" + frames + " pixel_width=" + pixelWidth + " pixel_height=" + pixe...

*/
// interetingly, the first run after testing in batch mode will crash as well, but the run after that not