[iOS] Voice-to-text: after input, content is removed

[iamthomasbishop]

Expected behavior

When using voice-to-text, if I input a string and tap to submit, I expect that the string will be applied in place.

Actual behavior

As I'm speaking, the words are transcribed on the fly, but upon submitting, that content disappears.

Update: also tried Google's Gboard keyboard (on iOS) voice-to-text and that works as expected.

Steps to reproduce the behavior

1. Start a post
2. Add a paragraph block
3. Tap the microphone icon on the keyboard
4. Speak to capture a phase
5. Submit captured phase
6. Observe that submitted phase is removed

Tested on iPhone XS Max running iOS 12.1.4, and iPad Pro running 12.2 beta.