Vector attribute values are not separated by a comma (or anything) in the new form interface

Here's what the DAS for the nc/bears.nc files looks like: (From a running server: http://localhost:8080/opendap/data/nc/bears.nc.das)

But the form interface shows the values without the comma separating them. See the screenshot attached. (From a running server: http://localhost:8080/opendap/data/nc/bears.nc.html)