diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomBackTaskCmd.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomBackTaskCmd.java
index 2535978b0..6acc44fa0 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomBackTaskCmd.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomBackTaskCmd.java
@@ -12,7 +12,6 @@ import org.flowable.engine.impl.util.CommandContextUtil;
 import org.flowable.task.api.history.HistoricTaskInstance;
 import org.flowable.task.api.history.HistoricTaskInstanceQuery;
 import org.flowable.task.service.impl.persistence.entity.TaskEntity;
-import org.springframework.util.StringUtils;
 
 import java.io.Serializable;
 import java.util.Collections;
@@ -68,24 +67,20 @@ public class CustomBackTaskCmd extends AbstractCommand<Void> implements Serializ
     @Override
     public Void execute(CommandContext commandContext) {
         ProcessEngineConfigurationImpl processEngineConfiguration =
-                CommandContextUtil.getProcessEngineConfiguration(commandContext);
+            CommandContextUtil.getProcessEngineConfiguration(commandContext);
         HistoricTaskInstanceQuery taskQuery =
-                processEngineConfiguration.getHistoryService().createHistoricTaskInstanceQuery();
+            processEngineConfiguration.getHistoryService().createHistoricTaskInstanceQuery();
         TaskService taskService = processEngineConfiguration.getTaskService();
 
         HistoricTaskInstance historicTaskInstance = taskQuery.taskId(dto.getTaskId()).singleResult();
 
         TaskEntity task = (TaskEntity) taskService.createTaskQuery().taskId(dto.getTaskId()).singleResult();
         validTask(historicTaskInstance, task, dto.getApprover(), dto.getNodeTypes());
-        if (StringUtils.hasLength(dto.getAdvice())) {
-            Authentication.setAuthenticatedUserId(dto.getApprover().buildAssigneeId());
-            addComment(commandContext, task, COMMENT_TYPE_ADVICE, dto.getAdvice());
-            Authentication.setAuthenticatedUserId(null);
-        }
 
         batchAddAttachment(commandContext, task.getProcessInstanceId(), dto.getTaskId(), dto.getAttachmentList(), dto.getApprover());
 
-        Authentication.setAuthenticatedUserId(Objects.nonNull(dto.getApprover()) ? dto.getApprover().buildAssigneeId() : null);
+        Authentication.setAuthenticatedUserId(dto.getApprover().buildAssigneeId());
+        addComment(commandContext, task, COMMENT_TYPE_ADVICE, dto.getAdvice());
         addComment(commandContext, task, COMMENT_TYPE_OPERATION_DESC, operationDesc);
         Authentication.setAuthenticatedUserId(null);
 
@@ -93,9 +88,9 @@ public class CustomBackTaskCmd extends AbstractCommand<Void> implements Serializ
         task.setTransientVariable(TASK_COMPLETE_OPERATION_TYPE + dto.getTaskId(), BACKED.getStatus());
 
         runtimeService.createChangeActivityStateBuilder()
-                .processInstanceId(task.getProcessInstanceId())
-                .moveActivityIdsToSingleActivityId(Collections.singletonList(task.getTaskDefinitionKey()), dto.getToActivityId())
-                .changeState();
+            .processInstanceId(task.getProcessInstanceId())
+            .moveActivityIdsToSingleActivityId(Collections.singletonList(task.getTaskDefinitionKey()), dto.getToActivityId())
+            .changeState();
         return null;
     }