Description:
Banshee crashes upon opening it with the upnp extension enabled

Additional info:
* package version(s)
Banshee 2.6.0
* config and/or log files etc.

[jason@jason-laptop ~]$ banshee
[Info 11:35:39.112] Running Banshee 2.6.0: [ArchLinux (linux-gnu, x86_64) @ 2012-10-17 20:23:07 UTC]
[Info 11:35:40.027] Updating web proxy from GConf
[Info 11:35:40.104] All services are started 0.743652
[Info 11:35:40.751] nereid Client Started
[Info 11:35:40.799] GStreamer version 1.0.1.0, gapless: False, replaygain: False
Stacktrace:

at (wrapper managed-to-native) GConf.Client.gconf_client_get (intptr,string,intptr&) <0xffffffff>
at GConf.Client.Get (string) <0x0003f>
at Banshee.GnomeBackend.GConfConfigurationClient.TryGet<bool> (string,string,bool&) <0x000b6>
at Banshee.Configuration.ConfigurationClient.TryGet<bool> (string,string,bool&) <0x00034>
at Banshee.Configuration.ConfigurationClient.Get<bool> (string,string,bool) <0x0002b>
at Banshee.Configuration.ConfigurationClient.Get<bool> (Banshee.Configuration.SchemaEntry`1<bool>) <0x00017>
at Banshee.Configuration.SchemaEntry`1<bool>.Get () <0x00067>
at Banshee.Configuration.SchemaEntry`1<bool>..ctor (string,string,bool,bool,bool,string,string) <0x0006f>
at Banshee.Configuration.SchemaEntry`1<bool>..ctor (string,string,bool,string,string) <0x0005f>
at Banshee.UPnPClient.UPnPServerSource..ctor (Mono.Upnp.Device) <0x001b7>
at Banshee.UPnPClient.UPnPService.DeviceAdded (object,Mono.Upnp.DeviceEventArgs) <0x0017b>
at Mono.Upnp.Client.OnEvent<T> (System.EventHandler`1<T>,T) <0x0002f>
at Mono.Upnp.Client.OnDeviceAdded (Mono.Upnp.DeviceEventArgs) <0x00027>
at Mono.Upnp.Client.<ClientServiceAdded>m__4F (Mono.Upnp.DeviceAnnouncement) <0x00060>
at Mono.Upnp.Client.ClientServiceEvent (Mono.Ssdp.ServiceArgs,System.Action`1<Mono.Upnp.DeviceAnnouncement>,System.Action`1<Mono.Upnp.ServiceAnnouncement>) <0x001bd>
at Mono.Upnp.Client.ClientServiceAdded (object,Mono.Ssdp.ServiceArgs) <0x0008b>
at Mono.Ssdp.Client.OnServiceAdded (Mono.Ssdp.Service) <0x00052>
at Mono.Ssdp.Client.CacheServiceAdded (Mono.Ssdp.Service) <0x00015>
at Mono.Ssdp.Internal.ServiceCache.Add (Mono.Ssdp.BrowseService) <0x00067>
at Mono.Ssdp.Browser.OnAsyncResultReceived (Mono.Ssdp.Internal.AsyncReceiveBuffer) <0x00093>
at Mono.Ssdp.MulticastReader.OnAsyncResultReceived (System.IAsyncResult) <0x000c4>
Segmentation fault
[jason@jason-laptop ~]$




Steps to reproduce:
pacman -Syu with banshee installed, start banshee, open up "preferences" and enable "upnp client" in the extenions list, restart banshee.