Merge pull request #2269 from darranl/ELY-2894/1.15.x

[ELY-2894] We should use URI.getRawPath() when constructing the URL by hand.

Author: darranl

http/form/src/main/java/org/wildfly/security/http/form/FormAuthenticationMechanism.java

@@ -337,7 +337,7 @@ private void sendLogin(HttpServerRequest request, HttpServerResponse response) t
             if (appendPort(scheme, port)) {
                 sb.append(':').append(port);
             }
-            sb.append(requestURI.getPath());
+            sb.append(requestURI.getRawPath());
             if(requestURI.getRawQuery() != null) {
                 sb.append("?");
                 sb.append(requestURI.getRawQuery());