I think I know the answer to this, but thought I would verify this: are the following two GetMetadata requests semantically equivalent?

<mex:GetMetadata>
  <mex:Dialect Type="wsdl:definitions" Content="http://www.w3.org/2010/08/ws-mex/Content/URI"/>
</mex:GetMetadata>

<mex:GetMetadata>
  <mex:Dialect Type="wsdl:definitions"/>
  <mex:Dialect Content="http://www.w3.org/2010/08/ws-mex/Content/URI"/>
</mex:GetMetadata>

~ gp