No localization for string "Reference to <document-type>" in Studio editor

[LarsSelbekk]

Describe the bug

Using a localization of the Sanity Studio such as nb-NO, no translation exists for the string "Reference to " when a field is an array of references. I cannot find a translation ID for this string, so I believe it is untranslatable.

To Reproduce

Steps to reproduce the behavior:

1. Create a Sanity studio using the nextjs-sanity-clean template
2. In studio/src/schemaTypes/documents/post.ts, change the author field from

      type: 'reference',
      to: [{type: 'person'}],

to

      type: 'array',
      of: [{type: 'reference', to: [{type: 'person'}]}],

3. Run npm install @sanity/locale-nb-no in the studio project
4. Add localeNbNO() to plugins in sanity.config.ts
5. Open the studio in the browser
6. Click + and Post
7. Scroll to the Author field, and click + Legg til (add)
8. See that it says Reference to person instead of Referanse til person

Expected behavior
The label should say "Referanse til person", or it should at least be possible to translate.

Screenshots

Which versions of Sanity are you using?

@sanity/cli (global)          3.77.0 (latest: 3.79.0)
@sanity/assist                 3.2.0 (up to date)
@sanity/eslint-config-studio   4.0.0 (latest: 5.0.2)
@sanity/icons                  3.6.0 (latest: 3.7.0)
@sanity/locale-nb-no          1.1.19 (up to date)
@sanity/vision                3.77.0 (latest: 3.79.0)
sanity                        3.77.0 (latest: 3.79.0)

What operating system are you using?
MacOS Sequoia 15.3.2

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

10.9.2
v23.9.0

Additional context

I'm not sure since it's under the legacy-path, but it might be this line

I found no instances of the string Reference to in https://github.com/sanity-io/locales or any ID which looked relevant, and the string was also not translated in the es-ES and fr-FR locales.

Security issue?
No