fix(core): Remove default for manual trigger in manual executions (#16829)

packages/cli/src/__tests__/manual-execution.service.test.ts

@@ -72,26 +72,29 @@ describe('ManualExecutionService', () => {
 			expect(executionStartNode?.name).toEqual('node3');
 		});
 
-		it('should default to The manual trigger', () => {
-			const data = mock<IWorkflowExecutionDataProcess>();
+		it('should return undefined, even if manual trigger node is available', () => {
+			const scheduleTrigger = mock<INode>({
+				type: 'n8n-nodes-base.scheduleTrigger',
+				name: 'Wed 12:00',
+			});
+
 			const manualTrigger = mock<INode>({
 				type: 'n8n-nodes-base.manualTrigger',
 				name: 'When clicking ‘Execute workflow’',
 			});
 
+			const data = mock<IWorkflowExecutionDataProcess>({
+				startNodes: [scheduleTrigger],
+				triggerToStartFrom: undefined,
+			});
+
 			const workflow = mock<Workflow>({
 				getTriggerNodes() {
-					return [
-						mock<INode>({
-							type: 'n8n-nodes-base.scheduleTrigger',
-							name: 'Wed 12:00',
-						}),
-						manualTrigger,
-					];
+					return [scheduleTrigger, manualTrigger];
 				},
 			});
 			const executionStartNode = manualExecutionService.getExecutionStartNode(data, workflow);
-			expect(executionStartNode?.name).toBe(manualTrigger.name);
+			expect(executionStartNode?.name).toBeUndefined();
 		});
 	});
 

packages/cli/src/manual-execution.service.ts

@@ -9,7 +9,7 @@ import {
 	WorkflowExecute,
 	rewireGraph,
 } from 'n8n-core';
-import { MANUAL_TRIGGER_NODE_TYPE, NodeHelpers } from 'n8n-workflow';
+import { NodeHelpers } from 'n8n-workflow';
 import type {
 	IExecuteData,
 	IPinData,
@@ -43,17 +43,9 @@ export class ManualExecutionService {
 			startNode = workflow.getNode(data.startNodes[0].name) ?? undefined;
 		}
 
-		if (startNode) {
 		return startNode;
 	}
 
-		const manualTrigger = workflow
-			.getTriggerNodes()
-			.find((node) => node.type === MANUAL_TRIGGER_NODE_TYPE);
-
-		return manualTrigger;
-	}
-
 	// eslint-disable-next-line @typescript-eslint/promise-function-async
 	runManually(
 		data: IWorkflowExecutionDataProcess,