Oauth2 query parameters

OAuth2 support query parameters on AUthentication url. When we configure the OIDC authentication with a OAuth2 parametrized (https://url/oauth2/v2.0/authorize?parameter1=test, the url is badly updated with 2 ‘?’ https://url/oauth2/v2.0/authorize?parameter1=test?parameter2=xxx instead of a second parameter https://url/oauth2/v2.0/authorize?parameter1=test&parameter2=xxx.

Is that something that will be fixed or is there a way to configure it correctly?