Document Locations Resolver appears doubled-up on a singleton document

[mitchuman]

Describe the bug

Locations Resolver appears twice on a singleton document.

To Reproduce

Steps to reproduce the behavior:

1. Create a singleton document (type: 'site')
2. Define location resolver:

presentationTool({
  ...,
  resolve: {
    locations: {
      site: defineLocations({
        message: 'This document is used on all pages',
        locations: [
          {
            title: 'Home',
            href: '/',
          },
        ],
      }),
    }
  }
})

Expected behavior

Should only appear once

Screenshots

Which versions of Sanity are you using?

@sanity/cli (global)          3.74.1 (up to date)
@sanity/code-input             5.1.2 (up to date)
@sanity/dashboard              4.1.2 (up to date)
@sanity/eslint-config-studio   5.0.1 (up to date)
@sanity/image-url              1.1.0 (up to date)
@sanity/preview-url-secret     2.1.4 (up to date)
@sanity/vision                3.74.1 (up to date)
sanity                        3.74.1 (up to date)

What operating system are you using?

macOS Sequoia 15.3 (24D60)

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

9.8.1
v18.18.0

Additional context

When groups are defined for the site singleton document, one of the Location Resolver disappears. Seems to be only appearing under "All" and the first group (set as default):

Screen.Recording.2025-02-10.at.6.16.46.PM.mov