Using GUPnPContextManager throws assertion in gssdp_client_get_server_id

[Sascha Dierberg <dierberg dresearch-fe de>]

Hello list, hello Jens,

I am using GUPnPContextManager and dont know if I've found a bug or did it wrong:

In signal handler "available" I create a :
        root_device = gupnp_root_device_new (p, dev, "/var/tmp" );                            
        gupnp_root_device_set_available (root_device, TRUE);
        gupnp_context_manager_manage_root_device(mgr, root_device);     

In signal handler "unavailable" the GUPnPContext p is freed with g_object_unref(p);

Later a timer tries to send signals on a still present context:

#1  0x4016a968 in gssdp_client_get_server_id (client=0x644f0)
    at gssdp-client.c:669
#2  0x4016db3c in resource_alive (resource=0x67c50)
    at gssdp-resource-group.c:1044
#3  0x400b01cc in g_list_foreach (list=<value optimized out>,
    func=0x4016daf4 <resource_alive>, user_data=0x0) at glist.c:949
#4  0x4016e208 in send_announcement_set (user_data=<value optimized out>)
    at gssdp-resource-group.c:511
#5  resource_group_timeout (user_data=<value optimized out>)
    at gssdp-resource-group.c:731
#6  0x400b2214 in g_timeout_dispatch (source=0x731b8,
    callback=0x4016e1c4 <resource_group_timeout>, user_data=0x4016a358)
    at gmain.c:4413

So we got:
** (process:7329): CRITICAL **: gssdp_client_get_server_id: assertion `GSSDP_IS_CLIENT (client)' failed

Whats wrong?  Thank you for your help in advance.

Best regards - Sascha