About IdP V2 and spring versions

[Rod Widdowson]

This is just a general heads up.

In IDP-571 I am chasing up an odd name space pollution issue in which the
'name="wibble"' of an encoder was overwriting the 'id="wibble"' of an
attribute definition.

It turns out that this is a Spring artefact introduced somewhere between
2.5.6 and 4.1.3 - our code is pretty much unchanged.  I've not chased up the
why or when.  

What we do need to be aware of is that this means we cannot "just" change
the revision of Spring in V2.  I realize that we wouldn't just do that.  But
this is a bug we would never find in testing and so we could be careful
about the upgrade and still miss this.  I suspect that there will be other
issues as V3 rolls out.

A question for Brent is whether I should retrofit whatever fix I make in V3
back to V2?

Rod