流程bug

hx-flow/src/main/java/com/fjhx/flow/service/flow/impl/FlowExampleServiceImpl.java

@@ -233,7 +233,7 @@ public class FlowExampleServiceImpl extends ServiceImpl<FlowExampleMapper, FlowE
 
         // 父节点id map
         Map<Long, FlowDefinitionNode> flowDefinitionNodeMap = flowDefinitionNodeList.stream()
-                .collect(Collectors.toMap(FlowDefinitionNode::getParentId, Function.identity()));
+                .collect(Collectors.toMap(FlowDefinitionNode::getParentId, Function.identity(), (t1, t2) -> t2));
 
         FlowDefinitionNode nextNode = flowDefinitionNodeMap.get(definitionNodeId);