Fix auta feedback

src/main/java/nl/tudelft/submit/service/ScriptService.java

@@ -258,23 +258,23 @@ public class ScriptService {
 				.score(verdictPassed ? 1 : 0)
 				.submission(new SubmissionIdDTO().id(submissionId))) : null;
 
-		sendUpdateNotification(submissionId, gradeId);
-
 		String textualFeedback = feedback.toString();
-		feedbackService.addFeedback(FeedbackCreateDTO.builder()
-				.isScriptFeedback(true)
-				.visibleFor(RoleSummaryDTO.TypeEnum.STUDENT)
-				.authorId(-1L)
-				.textualFeedback(textualFeedback)
-				.timestamp(now)
-				.submissionId(submissionId)
-				.gradeId(gradeId)
-				.build());
-
-		gradeService.updateGradesAfterGradedSubmission(submissionId);
+		if (!textualFeedback.isBlank()) {
+			feedbackService.addFeedback(FeedbackCreateDTO.builder()
+					.isScriptFeedback(true)
+					.visibleFor(RoleSummaryDTO.TypeEnum.STUDENT)
+					.authorId(-1L)
+					.textualFeedback(textualFeedback)
+					.timestamp(now)
+					.submissionId(submissionId)
+					.gradeId(gradeId)
+					.build());
+		}
 
 		if (canGrade) {
+			sendUpdateNotification(submissionId, gradeId);
 			submissionService.setPendingState(submissionId, false);
+			gradeService.updateGradesAfterGradedSubmission(submissionId);
 		}
 
 		return verdictPassed;