imshow breaks with 4D images

[ChantalJuntao]

The imshow GUI's proportions are totally broken when showing 4D images, at least on windows.

using TestImages, ImageView

mri = testimage("mri");
mri2 = cat(mri, mri, mri, mri, , mri, mri, mri, mri, mri, mri, dims = 4);

imshow(mri2);