iOS Siri dictation duplicates paragraphs

[matthewd]

When entering text using Siri dictation, if you say "new paragraph", the already-spoken paragraph will be inserted twice (in some of my tests, with different words).

Steps to Reproduce

1. Enter a Trix input field on iOS
2. Tap the microphone dictation button
3. Say "hello world new paragraph goodbye world"
4. Tap 'Done' in the dictation area
5. If it doesn't reproduce, you may need to repeat once -- it seems less likely to misbehave when starting from empty

When the bug manifests, the above will insert:

Hello world
 Hello world

Goodbye world

Probably related, but possibly separate: if you instead tap 'Done' in the keyboard toolbar, only the first "Hello world" will be inserted -- the second paragraph never appears.

[stale]

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