[Bug][API] fix ProcessDefinition update error #8334 (#8338)

* [bug] fix task definition delete

* [bug] fix ProcessDefinition update error #8334

* [bug] fix ProcessDefinition update error #8334

Co-authored-by: edward-yang <yangjianh210@gmail.com>

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ProcessDefinitionServiceImpl.java

@@ -604,13 +604,15 @@ public class ProcessDefinitionServiceImpl extends BaseServiceImpl implements Pro
         if (processDefinition.equals(processDefinitionDeepCopy) && saveTaskResult == Constants.EXIT_CODE_SUCCESS) {
             List<ProcessTaskRelationLog> processTaskRelationLogList = processTaskRelationLogMapper.queryByProcessCodeAndVersion(processDefinition.getCode(), processDefinition.getVersion());
             if (taskRelationList.size() == processTaskRelationLogList.size()) {
-                Map<Long, ProcessTaskRelationLog> taskRelationLogMap =
-                    taskRelationList.stream().collect(Collectors.toMap(ProcessTaskRelationLog::getPostTaskCode, processTaskRelationLog -> processTaskRelationLog));
-                for (ProcessTaskRelationLog processTaskRelationLog : taskRelationList) {
-                    if (!processTaskRelationLog.equals(taskRelationLogMap.get(processTaskRelationLog.getPostTaskCode()))) {
+                Set<ProcessTaskRelationLog> taskRelationSet = taskRelationList.stream().collect(Collectors.toSet());
+                Set<ProcessTaskRelationLog> processTaskRelationLogSet = processTaskRelationLogList.stream().collect(Collectors.toSet());
+                if (taskRelationSet.size() == processTaskRelationLogSet.size()) {
+                    taskRelationSet.removeAll(processTaskRelationLogSet);
+                    if (!taskRelationSet.isEmpty()) {
                         isChange = true;
-                        break;
                     }
+                } else {
+                    isChange = true;
                 }
             } else {
                 isChange = true;