Comment 5 for bug 1356041

Here's a stacktrace of a *debug build*

#0 0xb7745bfe in g_type_check_instance_cast ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#1 0xb571b800 in gtkspell_detach () from /usr/lib/libgtkspell-3.so.0
#2 0xb57201a4 in ___lambda3_ (info=0x825aab8, _data1_=<optimized out>)
    at /build/buildd/scratch-text-editor-2.0.2.1~r1234/obj-i686-linux-gnu/plugins/spell/spell.c:138
#3 ____lambda3__scratch_services_plugins_manager_extension_removed (
    _sender=0x8561160, info=0x825aab8, self=0x822d660)
    at /build/buildd/scratch-text-editor-2.0.2.1~r1234/obj-i686-linux-gnu/plugins/spell/spell.c:144
#4 0xb77253c5 in g_cclosure_marshal_VOID__BOXEDv ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#5 0xb7722727 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#6 0xb773ba19 in g_signal_emit_valist ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#7 0xb773c89f in g_signal_emit_by_name ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#8 0xb7fab17a in peas_cclosure_marshal_VOID__BOXED_OBJECT ()
   from /usr/lib/libpeas-1.0.so.0
#9 0xb7722484 in g_closure_invoke ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#10 0xb77340d9 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#11 0xb773c2cc in g_signal_emit_valist ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#12 0xb773c443 in g_signal_emit ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#13 0xb7fae26f in ?? () from /usr/lib/libpeas-1.0.so.0
#14 0xb7fae2dc in ?? () from /usr/lib/libpeas-1.0.so.0
#15 0xb7725333 in g_cclosure_marshal_VOID__BOXED ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#16 0xb7722484 in g_closure_invoke ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#17 0xb77340d9 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#18 0xb773c2cc in g_signal_emit_valist ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#19 0xb773c443 in g_signal_emit ()
   from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#20 0xb7facad3 in peas_engine_unload_plugin () from /usr/lib/libpeas-1.0.so.0
#21 0xb7fc01e5 in peas_gtk_plugin_manager_store_set_enabled ()
   from /usr/lib/libpeas-gtk-1.0.so.0