Cannot navigate back a page after submitting

[hodograph]

When clicking the submit button in the math field I can no longer navigate back a page, neither with an android back swipe action nor the back button in the app bar.

If I click inside any input box, including the math field, then I can now navigate back again.

Unsure exactly what causes this. I tried defining my own focus node and unfocus, refocus, unfocusing again but it didn't work.

Update: wrapping the scaffolding in a PopScope and doing
onPopInvokedWithResult: (didPop, result) { if(!didPop) { Navigator.of(context).pop(); } },

Fixes it for my use case

[github-actions]

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