Using getAsset within an array of objects (getting preview-templates to work w/Gatsby images)

I have a collection that has slideshowImages. This is an object that contains the image and the description string that I use for its alt tag.

(If it helps, here is the markdown for this file collection.)

This set-up works wonderfully for the actual page that pulls it in through GraphQL.

However, I messed something up in my preview template and I get the pure strings from the markdown instead of the actual Gatsby Image object. This causes a bug in my preview display that says it can’t find “fluid”.

I can see that the boilerplate seems to call getAsset here to avoid this problem. But I’m not sure how to use this Immutable.js feature within the realm of this returned object.

Mapping over that attribute like so…

        slideshowImages={ => (
            src: {...getAsset(img.src)}

also did NOT do the trick. I’m not sure how to handle getAsset within an array of objects.

Could anyone help me understand why these Immutable functions are only necessary within the templates and how to overcome the issue I’m having?

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