The problem is that there is a TreatIterator put in place checking the return
type of the function.
<FnCountIterator id="0x1926410">
<TreatIterator type="[JSONXQType object]" quant="*" id="0x191d1e0">
<ExtFunctionCallIterator id="0x193e380">
<TreatIterator type="xs:anyURI" quant="" id="0x191cf20">
<ExtFunctionCallIterator id="0x191e490">
<SingletonIterator value="xs:string(127.0.0.1)" id="0x1927400"/>
<JSONObjectIterator id="0x19264f0"/>
</ExtFunctionCallIterator>
</TreatIterator>
<SingletonIterator value="xs:string(/)" id="0x19730c0"/>
</ExtFunctionCallIterator>
</TreatIterator>
</FnCountIterator>
The TreatIterator doesn't override count and, hence, the count call never gets
executed on the ExtFunctionCallIterator. Could you please look at the
implementation of the TreatIterator. I don't think this can easily be done but
maybe you have an idea.
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