Empty non-nullable images are an empty array ?

Hi ! I have a non-nullable image metadata column. When I fill it with data, it works as intended and returns...

profile_picture: { url: string, etc }

But when it's empty, I get the following:

profile_picture: []

An empty array, which is a different data type. Is that intentional? In the ideal, an empty value in that columns would show...

profile_picture: { url: null }

Thanks!