On 9/10/19 1:37 AM, Markus Armbruster wrote:
> Absent flat union branches default to the empty struct (since commit
> 800877bb16 "qapi: allow empty branches in flat unions").  But am
> attempt to omit all of them is rejected with "Union 'FOO' has no
> branches".  Harmless oddity, but it's easy to avoid, so do that.
> 
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
Reviewed-by: Eric Blake <eblake@redhat.com>

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