Image Create Sets Property architecture=''

When creating an image, if the user fills in the architecture field, then deletes the entered value, when the image is registered, it will have the architecture property set to a value of '' (empty string).

This prevents the image from being used, as it is not a valid architecture.

If the user completely avoids the architecture field, then the image will not have this empty architecture property set.

I'm guessing that the data model for the image gets built up as the user is filling out the information about the image, and once something is typed into the architecture field, it creates the property and corresponding value, but when the value is cleared, the property is left with a value of an empty string, instead of removing the property entirely.