hotFixes after exam test

fixes after doing last test of exam feature

src/main/java/nl/tudelft/ewi/queue/controller/RequestController.java

@@ -366,7 +366,7 @@ public class RequestController {
 			RedirectAttributes redirectAttributes) {
 		Request request = getRequest(id);
 		assert request.getRequestEntity().getId().equals(user.getId());
-		Room room = roomRepository.findByIdOrThrow(id);
+		Room room = roomRepository.findByIdOrThrow(roomId);
 		request.setRoom(room);
 		if (comment != null) {
 			request.setComment(comment);