Both version_declaration-003 and version_declaration-004 are querying bib2.xml 
ordering on the price element.

Note that some of the price elements have a leading space in their content.
This makes the ordering on price element unnecessary sensitive to the collation.
The expected results assume the codepoint collation, but the default collation 
is implementation defined.

We see the following solutions.
a) these 2 specific queries could set codepoint as default collation in the 
prolog
b) the XQTS guidelines could mandate that the default collation is set to 
codepoint
c) remove the leading spaces from the price elements in bib2.xml
d) add an xs:decimal constructor in the order by clause
e) remove the orde by clause from the query and assume that the results are 
returned in document order

Thanks,
Marc