To be short, I want to ask to one change that do not break any compatibility, and this case is not usual.

Here is what Pillow has now:

I want to ask to move these lines:

        shape, typestr = _conv_type_shape(self)
        new["shape"] = shape
        new["typestr"] = typestr
        new["version"] = 3

at the end , right after before return new

Reason why it is important to me.
I received such an issue where images in HEIF format created by Sony ILCE-7M4 camera has encoded size in itself different from the size value in HEIF header. (HEIF format has size in header and also size of decoded image, and for some unknown reason they can be different)

As I wrote in that issue, I added an optional option ALLOW_INCORRECT_HEADERS(default disabled) that will allow to load such images, and just change the Image.size during load method.
Tested it, and all seems work well, except this array property, cause here first fills image size in _conv_type_shape and after that Image get decoded.

This simple change will do nothing worse, so I will be very appreciated if you agree to move that lines.
Thanks.