Product Version: 69.0.3497.87 beta
User Agent: Mozilla/5.0 (X11; CrOS x86_64 10895.49.0) AppleWebKit/537.36  
(KHTML, like Gecko) Chrome/69.0.3497.87 Safari/537.36
UI Language: en-US

What steps will reproduce the problem?
(1) Start dictating into a text field
(2) Delete a character while the text is underlined.
(3) Stop dictation

What is the expected result?
Text is entered once into text field (hopefully with edits)

What happens instead?
Text appears multiple times.