bug: IonTabs throws when a Fragment contains one IonRouterOutlet

[Benziza]

Prerequisites

• I have read the contributing guidelines.
• I agree to follow the Code of Conduct.
• I searched existing issues without finding this problem.

Ionic Framework Version

v8.x, v9.x, Nightly

Current Behavior

When IonRouterOutlet is the only child of a React Fragment passed to IonTabs, rendering throws:

TypeError: Cannot read properties of undefined (reading 'type')

IonTabs treats the Fragment's children as an array, but React stores a single child as an element.

Expected Behavior

IonTabs should render when IonRouterOutlet is wrapped in a single-child Fragment.

Steps to Reproduce

1. Clone the reproduction.
2. Run npm install and npm run dev.
3. Open the app.

Code Reproduction URL

https://github.com/Benziza/ion-tabs-fragment-repro

Ionic Info

Ionic CLI       : 7.2.1
Ionic Framework : @ionic/react 9.0.1
NodeJS          : v25.6.0
npm             : 11.12.1
OS              : Windows 10

Additional Information

Removing the Fragment allows the same app to render.

[Benziza]

I can work on a focused fix and add a regression test for this case.