[Bug]: regression for URL dynamic segments only replaced if prefixed by /

[zanona]

What version of React Router are you using?

6.14.1

Steps to Reproduce

This seems to be a regression introduced at v6.5.0 where paths with dynamic segments simply stopped being correctly parsed if the dynamic segment is not prefixed by a forward slash '/'

in example:

generatePath("/news-:category", { category: "press" })

// output latest
// /news-:category

// output v6.4.5
// /news-press

Expected Behavior

generatePath("/news-:category", { category: "press" })  // -> /news-press

Actual Behavior

generatePath("/news-:category", { category: "press" })  // -> /news-:category

[zanona]

closed as intended behaviour as described under #9506

although this felt like a breaking change, which was my case.