Doesn't work in HomeAssistant 0.69 beta

HomeAssistant 0.69 beta includes a PR that changes the way custom_components load: https://github.com/home-assistant/home-assistant/pull/14211

It looks like this breaks the custom component, as I get the following error with 0.69:

File "/home/hass/custom_components/lutron_caseta_pro.py", line 24, in <module>
    from . import casetify
SystemError: Parent module '' not loaded, cannot perform relative import

[balloob]

Custom components should not import from one another. If you want to import other custom components, do this:

# If it's a component
hass.components.casetify.some_method()

# If it's a platfrom
from homeassistant.loader import get_component
platform = get_component(hass, 'light.hue')

[balloob]

Then close this issue 😉