bug: Angular: Modal does not open when using ModalController and the component declares an InputSignal with the root

[j-oppenhuis]

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Ionic Framework Version

v8.x

Current Behavior

When using ionic/angular: ^8.8. When we use ModalController with a dynamic root input that is given to the nav. It will open an empty nav.

Expected Behavior

When ModalController opens a component that contains an ion-nav, and that nav's root is set dynamically via an InputSignal, the nav should render the root component.

Steps to Reproduce

1. Go to https://stackblitz.com/edit/kodxyzx4?file=src%2Fmain.ts
2. Click on open modal. (This opens with an empty nav)
3. Refresh
4. Click on 'Open nav with if' (This opens with a filled nav)

Code Reproduction URL

https://stackblitz.com/edit/kodxyzx4?file=src%2Fmain.ts

Ionic Info

Ionic:

Ionic CLI : 7.2.1
Ionic Framework : @ionic/angular 8.8.10

Capacitor:

Capacitor CLI : 8.4.0
@capacitor/android : 8.4.0
@capacitor/core : 8.4.0
@capacitor/ios : 8.4.0

Utility:

cordova-res : not installed globally
native-run : 2.0.3

System:

NodeJS : v22.18.0
npm : 10.9.3
OS : macOS Unknown

Additional Information

No response