fix: autofit render errror after legend filter (#6723)

* fix: autofit render errror after legend filter

* chore: simplified code

* chore: update issue-6714 snapshot

Author: BQXBQX

__tests__/integration/issue-6714.spec.ts

@@ -0,0 +1,26 @@
+import { issue6714 as render } from '../plots/bugfix/issue-6714';
+import { createNodeGCanvas } from './utils/createNodeGCanvas';
+import { sleep } from './utils/sleep';
+import './utils/useCustomFetch';
+import './utils/useSnapshotMatchers';
+
+describe('issue6714', () => {
+  const canvas = createNodeGCanvas(800, 500);
+
+  it('issue6714.render() should correctly render', async () => {
+    const { chart, finished } = await render({
+      canvas,
+      container: document.createElement('div'),
+    });
+
+    await finished;
+    await sleep(20);
+
+    const dir = `${__dirname}/snapshots/bugfix`;
+    await expect(canvas).toMatchDOMSnapshot(dir, render.name);
+  });
+
+  afterAll(() => {
+    canvas?.destroy();
+  });
+});