<launch:create> has an optional type argument, that can take either "application" or "registration":
https://tools.ietf.org/html/rfc8334#section-3.3.1
We get that type via createExtension.get().getCreateType(), where if the type= argument isn't given, the function returns null.
In that case, we need to decide based on the TLD - application for end-date sunrise, and registration for start-date sunrise.
For now we can't do that, because FlowPicker doesn't have access to the TLD information. Until that is fixed we decide as follows:
- landrush and sunrush phases will default to APPLICATION, because there's no possible
registration for it.
- sunrise defaults to REGISTRATION because we're currenly launching start-date sunrise that uses registration.
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Created by MOE: https://github.com/google/moe
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