This is actually a rather different problem, and not one that you can solve at the XSLT level. XSLT will only handle documents that are namespace-conformant, while Tamino, for historical reasons, can also handle documents that are well-formed but don’t conform to the namespaces recommendation. I’m pretty sure you can avoid this problem of the ino: namespace prefix being undeclared, but the solution is at the Tamino level not the XSLT level, and I’ll have to leave someone else to answer it.
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