chore: fix README formatting (pre-existing oxfmt violation blocking CI)

Remove the unconditional 180px per-label cap and let the refs row use
the full subject cell when space allows, shrinking with ellipsis (full
name kept in the title tooltip) only when space truly runs out.

README.md

@@ -76,6 +76,4 @@ the [official plugins](plugins/official). The plugin API is still a preview.
 
 [Apache 2.0](LICENSE). Bundled third-party assets are listed in [`THIRD_PARTY_LICENSES.md`](THIRD_PARTY_LICENSES.md).
 
-
-
 <sub>Not affiliated with JetBrains. IntelliJ IDEA is a trademark of JetBrains s.r.o.</sub>

src/features/vcs/GitLog.module.css

@@ -310,7 +310,9 @@
   display: inline-flex;
   align-items: center;
   gap: 8px;
-  max-width: 50%;
+  /* May use the whole subject cell when space allows (#2447); shrinks with
+     per-label ellipsis before crowding out the commit message. */
+  max-width: 100%;
   overflow: hidden;
   margin-left: auto;
 }
@@ -328,7 +330,8 @@
   overflow: hidden;
   text-overflow: ellipsis;
   min-width: 0;
-  max-width: 180px;
+  /* Sizes to content (#2447): truncates with ellipsis only when .refs runs
+     out of room; the full name stays available via the title tooltip. */
 }
 /* Outlined tag glyph in the ref's colour. */
 .ref::before {

src/features/vcs/__tests__/gitLogRefLabels.test.tsx

@@ -0,0 +1,32 @@
+import { readFileSync } from "node:fs";
+import { render, screen } from "@testing-library/react";
+import { describe, expect, it } from "vitest";
+import { RefLabels } from "../GitLog";
+
+const css = readFileSync("src/features/vcs/GitLog.module.css", "utf8");
+
+const LONG_LOCAL = "feature-connection-storm-v2";
+const LONG_REMOTE = "gitlab/feature-connection-storm-v2";
+const REMOTES = new Set([LONG_REMOTE]);
+
+describe("RefLabels long branch names (#2447)", () => {
+  it("renders full names with title tooltips in regular mode", () => {
+    render(<RefLabels refs={[LONG_LOCAL, LONG_REMOTE]} remoteNames={REMOTES} />);
+    expect(screen.getByTitle(LONG_LOCAL)).toHaveTextContent(LONG_LOCAL);
+    expect(screen.getByTitle(LONG_REMOTE)).toHaveTextContent(LONG_REMOTE);
+  });
+
+  it("absorbs the remote into the local label in compact mode", () => {
+    render(<RefLabels refs={[LONG_LOCAL, LONG_REMOTE]} compact remoteNames={REMOTES} />);
+    expect(screen.getByTitle(`${LONG_LOCAL}, ${LONG_REMOTE}`)).toHaveTextContent(`gitlab & ${LONG_LOCAL}`);
+  });
+
+  it("lets labels size to content: no fixed pixel cap, ellipsis and clipping kept", () => {
+    const refBlocks = [...css.matchAll(/\.ref\s*\{([^}]*)\}/g)].map((m) => m[1]);
+    expect(refBlocks.length).toBeGreaterThan(0);
+    for (const block of refBlocks) expect(block).not.toMatch(/max-width:\s*\d+px/);
+    expect(refBlocks[0]).toMatch(/text-overflow:\s*ellipsis/);
+    const refsBlock = css.match(/\.refs\s*\{([^}]*)\}/)?.[1] ?? "";
+    expect(refsBlock).toMatch(/overflow:\s*hidden/);
+  });
+});