Active class not applied on `RouterLink` when using `to` with `string` or object with `path` key

[alizadeh118]

Reproduction

https://stackblitz.com/edit/vitejs-vite-a1m7gbnq

Steps to reproduce the bug

1. Open the reproduction link
2. Click on third item (Go to Feature one)
3. Check the active classes applied to the first and second links.

Expected behavior

The RouterLink component with the /features value is expected to have the active class (router-link-active) applied when the current route is /features/one, regardless of how the to prop value is provided.

Actual behavior

The active class (router-link-active) is applied only when the to prop is passed with a route name. However, for another RouterLink where the to prop is provided as a string, the active class is not applied.

Additional information

There is another difference between these two RouterLink components, though I'm not sure if it's a bug:

<RouterLink :to="{ name: 'features' }">
<RouterLink to="/features">

Clicking only on the second link causes the $route.params to include a pathMatch key.
You can verify this by clicking on the first two links in the reproduction link.

[posva]

/features should probably resolve to an empty params too because of the optional instead of having the empty string.