Lower-case-dashed Component Declaration does not work in angular2 component template

[aliatsis]

The angular2 component below uses lower-case-dashed nativescript components and does not render properly (renders only button 3 centered on the page).
The capital case declarations work fine.

@component({
selector: 'testing',
template: <stack-layout> <button text="button 1"></button> <button text="button 2"></button> <button text="button 3"></button> </stack-layout>
})