3D Preview Defaults To Sphere On Reopen

Hi,

This seems like a bug, but I'm not sure if it's intentional or not.

I was just wondering if it would be possible for Shader Forge to remember what was selected in the 3D Preview window upon reopening of a shader? I'm working on some gradients, which I like to view on a plane, and any time I open the shader I have to reset the preview.

Thanks for an amazing asset, btw. It's really really wonderful.