蓝图组卷中没有难度系数bug

cqb-gen-paper/src/main/java/com/qmth/cqb/genpaper/service/GenPaperService.java

@@ -419,6 +419,7 @@ public class GenPaperService {
         	unitRepo.save(paperDetailUnits);
         }
         paper.setDifficultyDegree(paperService.reSetDifficulty(paper, paper.getTotalScore()));
+        paper = paperRepo.save(paper);
         return paper;
     }