generated-index page shows parent category items when linked from another category

[Chesars]

Description

When a type: "link" inside a sidebar category points to the same URL as a generated-index page in another category, Docusaurus renders the page with items from the link's parent category instead of the generated-index's actual items.

Example

 // sidebars.js
  {
    type: "category",
    label: "Category A",
    items: [
      { type: "doc", id: "doc1" },
      { type: "doc", id: "doc2" },
      {
        type: "link",
        label: "Go to Category B →",
        href: "https://github.com/docs/category-b",  // URL of the generated-index page
      },
    ],
  },
  {
    type: "category",
    label: "Category B",
    link: {
      type: "generated-index",
      slug: "https://github.com/category-b",
    },
    items: ["item1", "item2", "item3"],
},

/docs/category-b shows cards for item1, item2, item3

But shows cards for doc1, doc2 (items from Category A)

Breadcrumb shows: Category A > Go to Category B

Note

There is no warning in the official documentation about this behavior. The docs for generated-index and type: "link" don't mention this limitation.