Infinite recursion in destructor when document was read by htmlReadDoc

[rkd77]

#include <libxml/HTMLparser.h>
#include <libxml++/libxml++.h>
#include <string>

int
main(void)
{
        std::string text = "BLABLA";
        xmlDoc* doc = htmlReadDoc((xmlChar*)text.c_str(), NULL, NULL, HTML_PARSE_RECOVER | HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING);
        // Encapsulate raw libxml document in a libxml++ wrapper
        xmlpp::Document doc1(doc);
        return 0;
}

compile as:
g++ -o test test.cpp $(pkg-config --cflags libxml++-5.0) $(pkg-config --libs libxml++-5.0)

./test segfaults