What version of React Router are you using?

react-router-dom 6.8.0

Steps to Reproduce

When browser is at a route other than the homepage: eg: /about, passing a Path object without the pathname key results in different final href values for 6.8.0 vs 6.7.0:

In the examples, click on the "About" link then inspect the "Hash Link" and "Search Link" to see the different href valeus

// on page with route "/about" <Link to={{ hash: 'hash' }}>Hash Link</Link> <Link to={{ search: 'foo=bar' }}>Search Link</Link>

6.8.0 output: example

<a href="/#hash">Hash Link</a> <a href="/?foo=bar">Search Link</a> 

6.7.0 output: example

<a href="/about#hash">Hash Link</a> <a href="/about?foo=bar">Search Link</a> 

Expected Behavior

Result in same final href value on 6.8.0 as in 6.7.0

Actual Behavior

final href value is different on 6.8.0 than 6.7.0, resulting in a breaking change