Fix warnings in QuestionService

src/main/java/nl/tudelft/labracore/service/QuestionService.java

@@ -21,10 +21,7 @@ import java.time.LocalDateTime;
 
 import javax.persistence.*;
 
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
+import lombok.*;
 import nl.tudelft.labracore.dto.create.QuestionCreateDTO;
 import nl.tudelft.labracore.dto.patch.QuestionPatchDTO;
 import nl.tudelft.labracore.model.Assignment;
@@ -129,6 +126,7 @@ public class QuestionService {
 	@Builder
 	@NoArgsConstructor
 	@AllArgsConstructor
+	@EqualsAndHashCode(callSuper = false)
 	private static class QuestionData extends View<Question> {
 
 		private Long id;
@@ -156,6 +154,7 @@ public class QuestionService {
 	@Builder
 	@NoArgsConstructor
 	@AllArgsConstructor
+	@EqualsAndHashCode(callSuper = false)
 	private static class EditionData extends View<Edition> {
 
 		private Long id;
@@ -175,6 +174,7 @@ public class QuestionService {
 	@Builder
 	@NoArgsConstructor
 	@AllArgsConstructor
+	@EqualsAndHashCode(callSuper = false)
 	private static class AssignmentData extends View<Assignment> {
 
 		private Long id;