Dynamic Text Area not Dynamic

[Iyae]

Ok so:

https://dev.fitbit.com/build/guides/user-interface/svg/

Dynamic Text Area: " you change the text content, the element height will automatically re-adjust."

This is false. I have created a Dynamic text element and when I change the text via:

document.getElementById('text').text="Some text"

The height stays the same as whatever it was before. I have tested this with varying amounts of text. The height never changes. 

Is there a way to "refresh" or "reload" the dynamic text area so that it operates as advertised?

[JonFitbit]

It seems like you need to set the `text-length` attribute to a value large enough for the string.

.someTextField { text-length: 1024 }

or

<text  text-length="1024" />

[Gondwana]

The issue may be related to this. For a giggle, try turning off the display after you've changed the text, and then turn it back on (letting auto-off do its thing should be sufficient). See if that results in a layout update.

[GeekBit]

Since the post is more than four years old I wonder if the issue still hasn't been fixed?
I am developing on a Fitbit Sense using the SDK 6.1.0 and following https://dev.fitbit.com/build/guides/user-interface/svg/#dynamic-textarea 
I have still have the same problem that the textarea is NOT resized after changing its text from JS.

Is there a workaround?