fix: 修复函数库,非必填引用类型,不传值 执行报错 #1564

Author: shaohuzhang1

apps/application/flow/step_node/function_lib_node/impl/base_function_lib_node.py

@@ -62,6 +62,8 @@ def valid_reference_value(_type, value, name):
 def convert_value(name: str, value, _type, is_required, source, node):
     if not is_required and value is None:
         return None
+    if not is_required and source == 'reference' and (value is None or len(value) == 0):
+        return None
     if source == 'reference':
         value = node.workflow_manage.get_reference_field(
             value[0],