libvirt bug

#include <stdio.h>
#include <stdlib.h>
#include <libvirt/libvirt.h>

// sample output:
// creating domain with virDomainCreate...
// domain ID: 1
// destroying domain...
//
// creating domain with virDomainCreateWithFlags...
// domain doesn't have an ID
// destroying domain...

char *domain_xml = ""
"<domain type=\"kvm\">"
"    <name>mydom</name>"
"    <memory>1024</memory>"
"    <os>"
"        <type>hvm</type>"
"    </os>"
"</domain>";

int main(int argc, char **argv) {
    virConnectPtr conn = virConnectOpen("qemu:///session");
    virDomainPtr dom = virDomainDefineXML(conn, domain_xml);

    printf("creating domain with virDomainCreate...\n");
    virDomainCreate(dom);

    unsigned int id = virDomainGetID(dom);
    if (id == -1) {
        printf("domain doesn't have an ID\n");
    } else {
        printf("domain ID: %d\n", id);
    }

    printf("destroying domain...\n");
    virDomainDestroy(dom);

    printf("\n");

    printf("creating domain with virDomainCreateWithFlags...\n");
    virDomainCreateWithFlags(dom, VIR_DOMAIN_NONE);

    id = virDomainGetID(dom);
    if (id == -1) {
        printf("domain doesn't have an ID\n");
    } else {
        printf("domain ID: %d\n", id);
    }

    printf("destroying domain...\n");
    virDomainDestroy(dom);

    virDomainUndefine(dom);
    virDomainFree(dom);
    virConnectClose(conn);

    return 0;
}