Lexical error on save with UploadFeature + localization

[mattiaz9]

Describe the Bug

Saving a collection that has a localized lexical field and also has an upload in the content cause this error in lexical when saving: Upload value should be a string or number. The Lexical Upload component should not receive the populated value object.

Link to the code that reproduces this issue

https://github.com/mattiaz9/payload/tree/bug/upload-feature

Reproduction Steps

1. Run pnpm dev _community
2. Open the example post
3. Add an image using the upload feature within the content
4. Click Publish in English

Which area(s) are affected? (Select all that apply)

plugin: richtext-lexical

Environment Info

Binaries:
  Node: 22.14.0
  npm: 10.9.2
  Yarn: N/A
  pnpm: 10.11.0
Relevant Packages:
  payload: 3.47.0
  next: 15.4.1
  @payloadcms/db-postgres: 3.47.0
  @payloadcms/email-resend: 3.47.0
  @payloadcms/graphql: 3.47.0
  @payloadcms/live-preview: 3.47.0
  @payloadcms/live-preview-react: 3.47.0
  @payloadcms/next/utilities: 3.47.0
  @payloadcms/plugin-cloud-storage: 3.47.0
  @payloadcms/plugin-form-builder: 3.47.0
  @payloadcms/plugin-nested-docs: 3.47.0
  @payloadcms/plugin-redirects: 3.47.0
  @payloadcms/plugin-seo: 3.47.0
  @payloadcms/richtext-lexical: 3.47.0
  @payloadcms/storage-s3: 3.47.0
  @payloadcms/storage-vercel-blob: 3.47.0
  @payloadcms/translations: 3.47.0
  @payloadcms/ui/shared: 3.47.0
  react: 19.1.0
  react-dom: 19.1.0
Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 24.5.0: Tue Apr 22 19:54:25 PDT 2025; root:xnu-11417.121.6~2/RELEASE_ARM64_T6020
  Available memory (MB): 16384
  Available CPU cores: 12