Cancelling the upload of >1 image results in posting an empty message

Observed behaviour

An empty message is posted. Uploading one attachment and cancelling behaves correctly. Tested with 2, 3, and 4 image files; I am assuming this manifests with any type of attachment and >4 items.

Reproduction steps

Tap the + to attach a file
Attach more than one file
Before it finishes uploading, cancel the upload

Build information

Beta 60, Version 1.0.0, Android 16 (arm64), Device Google Pixel 9a, Locale en-US, Push fcm, Flutter 3.44.2, Dart 3.12.2

Platform

Android

Details

Expected behaviour The message should be cancelled entirely.