It's not. This worked fine in 2.0.3 and below. They introduced a bug in 2.0.4 that broke this for pretty much all z-wave locks.
Discussed here. The topic is about Schlage, but it applies to all z-wave locks in 2.0.4. I verified it on Yale and Kwikset, for instance. It's been going on for a month (annoyingly).