사용자관리 list 버그 수정

src/main/java/com/palnet/biz/jpa/repository/pty/PtyGroupQueryRepository.java

@@ -377,9 +377,11 @@ public class PtyGroupQueryRepository{
         	return result;
         }
         for(BasGroupUserModel model : queryResult) {
+        	if(!(model.getMemberName() == null)) {
         	String memberName = EncryptUtils.decrypt(model.getMemberName());
         	model.setMemberName(memberName);
         	result.add(model);
+        	}
         }
         return result;
     }