fix 修复驳回删除任务可能空指针异常，调整示例状态

gssong

2024-06-04 ff684cad44763ef22f655d244455d19e798f8451

 ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/ActTaskServiceImpl.java

@@ -690,7 +690,9 @@
            MultiInstanceVo multiInstance = WorkflowUtils.isMultiInstance(task.getProcessDefinitionId(), task.getTaskDefinitionKey());
            if (multiInstance == null && taskList.size() > 1) {
                List<Task> tasks = StreamUtils.filter(taskList, e -> !e.getTaskDefinitionKey().equals(task.getTaskDefinitionKey()));
                actHiTaskinstMapper.deleteBatchIds(StreamUtils.toList(tasks, Task::getId));
                if (CollUtil.isNotEmpty(tasks)) {
                    actHiTaskinstMapper.deleteBatchIds(StreamUtils.toList(tasks, Task::getId));
                }
            }