public static void putRecaptchaForgotUsernameEnabled(final RequestContext requestContext, final GoogleRecaptchaProperties properties) {
        requestContext.getFlowScope().put("recaptchaForgotUsernameEnabled", properties.isEnabled());
    }
Put recaptcha forgot username enabled.

@param requestContext the request context
@param properties     the properties
core/cas-server-core-web-api/src/main/java/org/apereo/cas/web/support/WebUtils.java