v4: a user from another instance can't be renamed from their profile's manage tab — it offered the name field to every user, and the API refuses a remote one's rename with a 400, since their home names them. The tab now only shows their name, as the settings do for one's own.

The profile's and the settings' tests of a remote account's links to its home still expected the home's host itself, which 8bcc005 replaced with GET /api/users/:key/home; they now expect that.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/test/pages/UserPublicProfile.test.tsx

@@ -1,3 +1,4 @@
+import { API_URL } from "../../config/api.ts";
 import { describe, expect, test, vi } from "vitest";
 import { act, screen, waitFor, within } from "@testing-library/react";
 import { userEvent } from "@testing-library/user-event";
@@ -65,9 +66,10 @@ describe("UserPublicProfile", () => {
     });
     expect(await screen.findByRole("heading", { name: "alice@home.example" }))
       .toBeInTheDocument();
+    // Through the API, which redirects to the home's pages.
     expect(screen.getByRole("link", { name: "home.example" })).toHaveAttribute(
       "href",
-      `${location.protocol}//home.example/@alice`,
+      `${API_URL}/api/users/@alice%40home.example/home`,
     );
     expect(screen.queryByTitle("Change avatar")).not.toBeInTheDocument();
     expect(screen.queryByTitle("Edit email")).not.toBeInTheDocument();
@@ -617,6 +619,20 @@ describe("UserPublicProfile", () => {
       );
     });
 
+    test("a user from another instance is named there, not here", async () => {
+      open({
+        session: makeSession({ id: "admin", role: "admin" }),
+        user: { ...ann, username: "ann@home.example" },
+        url: "/@ann@home.example/manage",
+      });
+      expect(
+        await screen.findByText("ann@home.example", {
+          selector: ".profile-appearance-value",
+        }),
+      ).toBeInTheDocument();
+      expect(screen.queryByRole("textbox", { name: "Username" })).toBeNull();
+    });
+
     test("non-admins get no manage tab, nor its page", async () => {
       open({
         session: makeSession({ id: "mod", role: "moderator" }),