runtime error: file ./bug-201.xsl line 13 element copy-of
exsltFuncFunctionFunction: Potentially infinite recursion detected in function {test}func.
xmlXPathCompiledEval: No result on the stack.
runtime error: file ./bug-201.xsl line 8 element param
Failed to evaluate the expression of variable 'var'.
no result for ./../docs/bug-201.xml