fix: avoid using node_data.version for judgement tool node version (#22462)

Co-authored-by: JzoNg <jzongcode@gmail.com>

api/core/workflow/nodes/tool/entities.py

@@ -59,6 +59,10 @@ class ToolNodeData(BaseNodeData, ToolEntity):
             return typ
 
     tool_parameters: dict[str, ToolInput]
+    # The version of the tool parameter.
+    # If this value is None, it indicates this is a previous version
+    # and requires using the legacy parameter parsing rules.
+    tool_node_version: str | None = None
 
     @field_validator("tool_parameters", mode="before")
     @classmethod

api/core/workflow/nodes/tool/tool_node.py

@@ -70,7 +70,13 @@ class ToolNode(BaseNode):
         try:
             from core.tools.tool_manager import ToolManager
 
-            variable_pool = self.graph_runtime_state.variable_pool if self._node_data.version != "1" else None
+            # This is an issue that caused problems before.
+            # Logically, we shouldn't use the node_data.version field for judgment
+            # But for backward compatibility with historical data
+            # this version field judgment is still preserved here.
+            variable_pool: VariablePool | None = None
+            if node_data.version != "1" or node_data.tool_node_version != "1":
+                variable_pool = self.graph_runtime_state.variable_pool
             tool_runtime = ToolManager.get_workflow_tool_runtime(
                 self.tenant_id, self.app_id, self.node_id, self._node_data, self.invoke_from, variable_pool
             )