Merge branch 'dev/v1.2.11_fu' of jianyu/jy-docs into feature/v1.2.11

jydocs-back/servers/stdDoc.go

@@ -203,6 +203,7 @@ func (stdDoc *StdDoc) GetDoc(sign string) {
 				if err != nil {
 					log.Println("GetDoc PartDocDownload 获取失败")
 				}
+				return nil, fmt.Errorf("文档正在上传中，请稍后再试")
 			}
 		}
 		domain := config.JyDocsAppConfig.OssBucket.Std