fix(editor): Use pinned data to resolve expressions in unexecuted nodes (#9693)

Co-authored-by: Milorad Filipovic <milorad@n8n.io>
Co-authored-by: Mutasem Aldmour <mutasem@n8n.io>

packages/workflow/src/WorkflowDataProxyHelpers.ts

@@ -0,0 +1,12 @@
+import type { INodeExecutionData, Workflow, WorkflowExecuteMode } from '.';
+
+export function getPinDataIfManualExecution(
+	workflow: Workflow,
+	nodeName: string,
+	mode: WorkflowExecuteMode,
+): INodeExecutionData[] | undefined {
+	if (mode !== 'manual') {
+		return undefined;
+	}
+	return workflow.getPinDataOfNode(nodeName);
+}