Steps to reproduce

• Create an app no optional type specified (should default to 'voice')
• Try to modify the type to 'rtc' by using the app:update

Expected behavior

The application should now have a type of 'rtc'

Actual behavior

The application type is still 'voice'

System configuration

Node version:
v5.12.0

NPM version:
3.8.6

Operating system:
Mac OS Sierra