Unable to login to OCP cluster using RH-SSO as identity provider

Issue

• We have configured RH-SSO as oidc identity provider in Openshift and when we try to login using RH-SSO identity provider we are getting following error in browser

We are sorry... 
An internal server error has occurred

• In Openshift oidc integration with RH-SSO - we are getting An internal server error has occurred when setting spec.identityProviders.name with spaces. Following NullPointerException is observed in RH-SSO server log

[org.keycloak.services.error.KeycloakErrorHandler] (default task-57) Uncaught server error: java.lang.NullPointerException
    at org.keycloak.keycloak-services@18.0.9.redhat-00001//org.keycloak.protocol.oidc.utils.RedirectUtils.verifyRedirectUri(RedirectUtils.java:143)
    at org.keycloak.keycloak-services@18.0.9.redhat-00001//org.keycloak.protocol.oidc.utils.RedirectUtils.verifyRedirectUri(RedirectUtils.java:63)
    at org.keycloak.keycloak-services@18.0.9.redhat-00001//org.keycloak.protocol.oidc.endpoints.AuthorizationEndpointChecker.checkRedirectUri(AuthorizationEndpointChecker.java:129)
    at org.keycloak.keycloak-services@18.0.9.redhat-00001//org.keycloak.protocol.oidc.endpoints.AuthorizationEndpoint.process(AuthorizationEndpoint.java:143)
    at org.keycloak.keycloak-services@18.0.9.redhat-00001//org.keycloak.protocol.oidc.endpoints.AuthorizationEndpoint.buildGet(AuthorizationEndpoint.java:112)
    at jdk.internal.reflect.GeneratedMethodAccessor984.invoke(Unknown Source)