TypeGen marks assets of images inside arrays as optional, even with assetRequired()

[maxijonson]

Describe the bug

Adding a Rule.required().assetRequired() validation works as expected when the image is a field (in an object). However, when it's an array member, this validation is not respected by TypeGen. Instead, it is always marked as optional (asset?: ...)

To Reproduce

The following schema:

import { defineField, defineType, defineArrayMember } from "sanity";
 
const imageField = defineField({
  type: "image",
  name: "image",
  title: "Image",
  validation: (rule) => [rule.required().assetRequired()],
});
 
export default defineType({
  name: "homeHero",
  title: "Hero",
  type: "object",
  fields: [
    imageField,
    defineField({
      name: "logos",
      title: "Logos",
      type: "array",
      of: [defineArrayMember(imageField)],
      validation: (rule) => [rule.required()],
    }),
  ]
});

Running:

sanity schema extract --path './sanity/generated/.sanity-generated.schema.json' --enforce-required-fields --workspace=staging && sanity typegen generate

Produces the following type:

export type HomeHero = {
  _type: "homeHero";
  image: {
    asset: {
      _ref: string;
      _type: "reference";
      _weak?: boolean;
      [internalGroqTypeReferenceTo]?: "sanity.imageAsset";
    };
    hotspot?: SanityImageHotspot;
    crop?: SanityImageCrop;
    _type: "image";
  };
  logos: Array<{
    asset?: {
      _ref: string;
      _type: "reference";
      _weak?: boolean;
      [internalGroqTypeReferenceTo]?: "sanity.imageAsset";
    };
    hotspot?: SanityImageHotspot;
    crop?: SanityImageCrop;
    _type: "image";
    _key: string;
  }>;
};

As you can observe, although both images are using the exact same field, only the one in the array (logos) has its asset marked as optional with asset?.

Expected behavior

TypeGen should respect the rule.required().assetRequired() on assets of images that are inside arrays.

Which versions of Sanity are you using?

@sanity/cli (global)        3.43.0 (up to date)
@sanity/asset-utils          1.3.0 (up to date)
@sanity/cli                 3.43.0 (up to date)
@sanity/code-input           4.1.4 (up to date)
@sanity/color-input          3.1.1 (up to date)
@sanity/icons               2.11.8 (up to date)
@sanity/image-url            1.0.2 (up to date)
@sanity/preview-url-secret  1.6.13 (up to date)
@sanity/ui                  2.1.12 (up to date)
@sanity/vision              3.43.0 (up to date)
sanity                      3.43.0 (up to date)

Not sure why @sanity/cli is marked as global here. I am using Volta, not sure if that's any help. Running npm list -g:

├── corepack@0.23.0
└── npm@10.2.4

What operating system are you using?

ProductName:            macOS
ProductVersion:         14.4.1
BuildVersion:           23E224

Which versions of Node.js / npm are you running?

10.2.4 # NPM
v20.11.1 # Node