URI override for `@HttpExchange` doesn't work if there are both `URI` and `@PathVariable` method parameters

[ccwxl]

Affects: 6.0.2

---

For code:

@HttpExchange(value = "uaa")
public interface UaaClient {

    @GetExchange("/passport/{identifier}")
    String passport(URI uri, @PathVariable("identifier") String identifier);

}

The requestValues.setUri method in UrlArgumentResolver will set the uriTemplate to null, causing the request to fail.

[rstoyanchev]

Thanks for the report. This should be fixed with the above commit.