KeyboardShrinksView true always prevents body scrolling

I'm using cordova 5.2.0
with the keyboard plugin org.apache.cordova.labs.keyboard
When KeyboardShrinksView is set to true the body content is unable to scroll. Setting DisableScrollingWhenKeyboardShrinksView to false has no effects.
This happens both when the keyboard is open and closed.
This is with a standard flowing document, no fixed/absolute elements.

Other elements within the body such as DIVs with overflow: auto can scroll.