[Mono-docs-list] tracking weird crash with monodoc

[Rafael Ferreira]

Hey guys, 

Every once in a while the docbrowser crashes on me throwing the
following exception:

Unhandled Exception: System.InvalidCastException: Cannot cast from
source type to destination type.
in <0x00149> GLib.ObjectManager:CreateObject (IntPtr raw)
in <0x000c1> GLib.Object:GetObject (IntPtr o, Boolean owned_ref)
in <0x0000c> GLib.Object:GetObject (IntPtr o)
in <0x0002e> Gtk.Label:get_Layout ()
in [0x00002]
(at /home/rafael/dev/mono-svn/mono-tools/docbrowser/elabel.cs:60)
ELabel:Reload ()
in [0x00008]
(at /home/rafael/dev/mono-svn/mono-tools/docbrowser/elabel.cs:38)
ELabel:set_Text (System.String value)
in [0x00068]
(at /home/rafael/dev/mono-svn/mono-tools/docbrowser/browser.cs:594)
Monodoc.Browser:Render (System.String text, Monodoc.Node matched_node,
System.String url)
in [0x0007a]
(at /home/rafael/dev/mono-svn/mono-tools/docbrowser/browser.cs:1674)
Monodoc.TreeBrowser:RowActivated (System.Object sender, System.EventArgs
a)
in (wrapper delegate-invoke)
System.MulticastDelegate:invoke_void_object_EventArgs
(object,System.EventArgs)
in <0x000c1> GtkSharp.voidObjectSignal:voidObjectCallback (IntPtr arg0,
Int32 key)
in (wrapper native-to-managed)
GtkSharp.voidObjectSignal:voidObjectCallback (intptr,int)
in <0x00000> <unknown method>
in (wrapper managed-to-native) Gtk.Application:gtk_main ()
in <0x00007> Gtk.Application:Run ()
in [0x001a8]
(at /home/rafael/dev/mono-svn/mono-tools/docbrowser/browser.cs:104)
Monodoc.Driver:Main (System.String[] args)

Can anyone give me some pointers on how I can fix this? And no, I cannot
come up with a reproducible test case. Btw, I'm on monodoc/doctools from
svn. 

- raf