The query string being character (?) is being deleted when landing on a dynamic page with query parameters.

Take this example:
Before:
localhost:3000/dynamic/path?test=true

After:
localhost:3000/dynamic/pathtest=true

My page component is as follows:

export type DynamicPageProps = {
    params: {
        param: string;
    };
};

export default function DynamicPage({ params }: DynamicPageProps ) {
    return <h1>Dynamic Page {params.param}</h1>;
}

When I first land on the page, the URL is correct, but after the first react render the ? gets removed

I am using the app router, nextjs 14.2.7