There is an assumption in data systems that a template is recognizable with the same data loader that is used to
recognize files created from that template. I have a case where this assumption doesn't hold.

In the Spring support I need to create an XML file with a given encoding, so my template looks starts with:

<?xml version="1.0" encoding="${encoding}"?>
<beans xmlns="http://www.springframework.org/schema/beans">

I have a MIME resolved installed which recognizes files with such a beans element as text/x-springconfig+xml. However,
the MIME type of the template is not text/x-springconfig+xml, but text/xml. Thus the file generated from the template is
recognized with XMLDataLoader instead of the loader for Spring files.

The template has the correct MIME type if I change "${encoding}" to e.g. "UTF-8".