XLIFFFilter: attributes with the same name from different namespaces get mixed

[Mihai Nita]

If an element of the XML contains attributes with identical local named (but different namespaces) the parser will return the first one.

For example trying to get the original ID from this placeholder:

<g ctype="x-ul" id="w1ab1b5b1b1b2" cms:id="ul_xlf_ly4_xf">

vs. this one:

<g cms:id="ul_xlf_ly4_xf" ctype="x-ul" id="w1ab1b5b1b1b2">

will get different results (the first id attribute wins)

But we want the one in the XLIFF namespace, always.

[Mihai Nita]

Fixed by commit 8823497