perf(RouterView): avoid parent rerenders when possible

[posva]

Close #1701

[netlify]

✅ Deploy Preview for vue-router canceled.

Name	Link
🔨 Latest commit	1191594
🔍 Latest deploy log	https://app.netlify.com/sites/vue-router/deploys/657c544dce062d0008af5cae

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.41%. Comparing base (8c73877) to head (db036a5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2082   +/-   ##
=======================================
  Coverage   97.40%   97.41%           
=======================================
  Files          26       26           
  Lines        6055     6068   +13     
  Branches      833      833           
=======================================
+ Hits         5898     5911   +13     
  Misses        155      155           
  Partials        2        2           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Narretz]

Hi @posva is this still relevant? Perf fixes are always good and I wonder if this fixes a bug I'm seeing ...

[netlify]

✅ Deploy Preview for vue-router ready!

Name	Link
🔨 Latest commit	db036a5
🔍 Latest deploy log	https://app.netlify.com/sites/vue-router/deploys/67210ce46fcc5e000832eff5
😎 Deploy Preview	https://deploy-preview-2082--vue-router.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 96 (no change from production) Accessibility: 100 (no change from production) Best Practices: 100 (no change from production) SEO: 100 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[pkg-pr-new]

Open in Stackblitz

pnpm add https://pkg.pr.new/vue-router@2082

commit: db036a5

[posva]

@Narretz can you try using the pkg-pr published version?