when trying to run idl3_to_xmi on xmi_for_sequence test it crashes when build with msvc9/xerces3

crashes on the code (release line):
    XStr::~XStr ()
    {
      if (_wstr)
        XMLString::release(&_wstr);
    }

callstack:
 	CIAO_XML_Utilsd.dll!CIAO::XML::XStr::~XStr()  Line 50 + 0x15 bytes	C++
 	CIAO_IDL3_TO_XMI_BEd.dll!CIAO::XMI::idl3_to_xmi_visitor::~idl3_to_xmi_visitor()  Line 121 + 0xe bytes	C++
 	CIAO_IDL3_TO_XMI_BEd.dll!BE_produce()  Line 139 + 0x12 bytes	C++
>	tao_idl3_to_xmi.exe!DRV_drive(const char * s=0x028ffdd0)  Line 285 + 0x8 bytes	C++
 	tao_idl3_to_xmi.exe!ace_main_i(int argc=7, char * * argv=0x003a1cd0)  Line 370 + 0x13 bytes	C++
 	tao_idl3_to_xmi.exe!ACE_Main::run_i(int argc=7, char * * argv=0x003a1cd0)  Line 304 + 0x1b bytes	C++
 	ACEd.dll!ACE_Main_Base::run(int argc=7, char * * argv=0x003a1cd0)  Line 87 + 0x17 bytes	C++
 	tao_idl3_to_xmi.exe!main(int argc=7, char * * argv=0x003a1cd0)  Line 304 + 0x59 bytes	C++
 	tao_idl3_to_xmi.exe!__tmainCRTStartup()  Line 586 + 0x19 bytes	C
 	tao_idl3_to_xmi.exe!mainCRTStartup()  Line 403	C