setTimestamp(..) 중 insert 부분 수정

src/main/java/cokr/xit/foundation/data/paging/MapperSupport.java

@@ -90,10 +90,11 @@ public class MapperSupport extends MybatisPlugin {
 		String userID = currentUser().getId();
 		switch (sqlType) {
 		case INSERT:
-			if (!isEmpty(entity.getCreatedBy())) return;
+			if (isEmpty(entity.getCreatedBy())) {
 				entity.setCreatedBy(userID);
-			entity.setCreatedAt(now);
 				entity.setModifiedBy(userID);
+			}
+			entity.setCreatedAt(now);
 			entity.setLastModified(now);
 			break;
 		case UPDATE: