I have noticed that it is quite possible for Stylus to create a Schema
from XML content against which the XML source is invalid. Added to
which you can get a crash to occur. Try this:
Create a Schema for the following and validate it.
NB With build 287L, if you already have a Schema called xml.xsd and you
don't allow Stylus to overwrite this file, Stylus will crash when asked to validate the document.
If you do allow the creation/overwriting of xml.xsd then the original
will be invalid against the created Schema.