moviedim option for jit.movie is crashing Max8
In the preference section of jit.movie (see attached screenshot), the moviedim and movie_dim (I'm not sure why there is 2 of them) both crashes Max8.
I'm not sure how they are different from Dim or what is the intended use, maybe they should be removed?

movie_dim (and the alias moviedim) is a read-only attribute of jit.movie. It returns the native dimensions of the loaded movie file.
if you have a crash, please send a patch with steps to reproduce.
it crashes inside the example patch, while moviedim is attached to jit.movie, while when I try to change the dimension value.