Spring Security The additionalParameters array parameter of OAuth2AuthorizationRequest causes the authorizationRequestUri to be incorrect

Describe the bug The additionalParameters array parameter of OAuth2AuthorizationRequest causes the authorizationRequestUri to be incorrect

To Reproduce Access the spring authorization server http://127.0.0.1:3000/oauth2/authorize?scope=openid%20profile&client_id=xx&response_type=code&state=12345&test=1&test=2 java code:

    OAuth2AuthorizationRequest authorizationRequest = OAuth2AuthorizationRequest.authorizationCode()
        .authorizationUri(authorizationCodeRequestAuthentication.getAuthorizationUri()) // http://127.0.0.1:3000/oauth2/authorize
        .clientId(registeredClient.getClientId()) //xxx
        .redirectUri(authorizationCodeRequestAuthentication.getRedirectUri())
        .scopes(authorizationCodeRequestAuthentication.getScopes())
        .state(state)
        .additionalParameters(authorizationCodeRequestAuthentication.getAdditionalParameters()) // map: {"test":["1","2"]}
        .build();
  authorizationRequest.getAuthorizationRequestUri() // http://127.0.0.1:3000/oauth2/authorize?response_type=code&client_id=xx&scope=openid%20profile&state=12345&test=%5BLjava.lang.String;@14ec7490

http://127.0.0.1:3000/oauth2/authorize?response_type=code&client_id=xx&scope=openid%20profile&state=12345&test=%5BLjava.lang.String;@14ec7490 The parameter test is wrong

Expected behavior http://127.0.0.1:3000/oauth2/authorize?response_type=code&client_id=xx&scope=openid%20profile&state=12345&test=1&test=2