What happens if a wild shaped druid is reduced to 0 by disintegrate?

@JeremyECrawford What happens if a wild shaped druid is reduced to 0 by disintegrate? Does he revert to normal physical form?

— Joshua Maxman (@Orethalion) September 17, 2015

The intent is that a druid using Wild Shape is disintegrated if the druid, not the beast form, drops to 0 hp. #DnD https://t.co/Qw7eKZXwqP

— Jeremy Crawford (@JeremyECrawford) September 17, 2015