fix(editor): Fix copy/paste issue when switch node is in workflow (#8103)

## Summary
Fix bug where copy/pasting a node breaks the view. Issue seems to be
that copied workflow does not have Switch node when workflow is
rerendering..

<img width="1942" alt="Screenshot 2023-12-19 at 18 16 23"
src="https://github.com/n8n-io/n8n/assets/4711238/ad53b8ae-3693-4733-8f6b-7bc9e7b9d216">




## Related tickets and issues
[Linear ticket
ADO-1504](https://linear.app/n8n/issue/ADO-1504/unwanted-nodes-connections-after-copypaste-of-n8n-form-trigger)


## Review / Merge checklist
- [X] PR title and summary are descriptive. **Remember, the title
automatically goes into the changelog. Use `(no-changelog)` otherwise.**
([conventions](https://github.com/n8n-io/n8n/blob/master/.github/pull_request_title_conventions.md))
- [ ] [Docs updated](https://github.com/n8n-io/n8n-docs) or follow-up
ticket created.
- [x] Tests included.
> A bug is not considered fixed, unless a test is added to prevent it
from happening again.
   > A feature is not complete without tests.

packages/editor-ui/src/components/Node.vue

@@ -377,9 +377,10 @@ export default defineComponent({
 					styles['--configurable-node-input-count'] = nonMainInputs.length + spacerCount;
 				}
 
-				const outputs =
-					NodeHelpers.getNodeOutputs(this.workflow, this.node, this.nodeType) ||
-					([] as Array<ConnectionTypes | INodeOutputConfiguration>);
+				let outputs = [] as Array<ConnectionTypes | INodeOutputConfiguration>;
+				if (this.workflow.nodes[this.node.name]) {
+					outputs = NodeHelpers.getNodeOutputs(this.workflow, this.node, this.nodeType);
+				}
 
 				const outputTypes = NodeHelpers.getConnectionTypes(outputs);