Hi,

In 

  https://bugs.edge.launchpad.net/ubuntu/+source/packagekit-gnome/+bug/246255

a user reported a segfault when going to install a package from the list.
It is reproducible with 0.2.1 when clicking the checkbox next to a package,
or choosing "Add to list", but not when double clicking.

Here is the stacktrace that I obtained:

#0 0xb727acc8 in strcmp () from /lib/tls/i686/cmov/libc.so.6
#1 0xb7eabebc in pk_strequal (id1=0x8062f29 "separator",
    id2=0x8062f29 "separator") at pk-common.c:478
#2 0x0804f2da in gpk_application_group_row_separator_func (model=0x823ad40,
    iter=0xbfe47ebc, data=0x0) at gpk-application.c:2312
#3 0xb7bda311 in gtk_tree_view_real_set_cursor (tree_view=0x8149330,
    path=0x8270ba8, clear_and_select=1, clamp_node=1)
    at /build/buildd/gtk+2.0-2.13.3/gtk/gtktreeview.c:2436
#4 0xb7be4d9d in gtk_tree_view_button_press (widget=0x8149330,
    event=0x82d0020) at /build/buildd/gtk+2.0-2.13.3/gtk/gtktreeview.c:2693
#5 0xb7acd7b2 in _gtk_marshal_BOOLEAN__BOXED (closure=0x809fc48,
    return_value=0xbfe481a0, n_param_values=2, param_values=0xbfe48258,
    invocation_hint=0xbfe4818c, marshal_data=0xb7be4580)
    at /build/buildd/gtk+2.0-2.13.3/gtk/gtkmarshalers.c:84
#6 0xb75801d9 in ?? () from /usr/lib/libgobject-2.0.so.0
#7 0xb7581a5b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#8 0xb75980dd in ?? () from /usr/lib/libgobject-2.0.so.0
#9 0xb7599a28 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#10 0xb759a016 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#11 0xb7bf9e7e in gtk_widget_event_internal (widget=0x8149330, event=0x82d0020)
    at /build/buildd/gtk+2.0-2.13.3/gtk/gtkwidget.c:4706
#12 0xb7ac54fa in IA__gtk_propagate_event (widget=0x8149330, event=0x82d0020)
    at /build/buildd/gtk+2.0-2.13.3/gtk/gtkmain.c:2343
---Type <return> to continue, or q <return> to quit---
#13 0xb7ac68ff in IA__gtk_main_do_event (event=0x82d0020)
    at /build/buildd/gtk+2.0-2.13.3/gtk/gtkmain.c:1563
#14 0xb7941a5a in gdk_event_dispatch (source=0x80973d0, callback=0,
    user_data=0x0) at /build/buildd/gtk+2.0-2.13.3/gdk/x11/gdkevents-x11.c:2365
#15 0xb74ef5e8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0xb74f2c93 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0xb74f31b2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#18 0xb7ac6e99 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.13.3/gtk/gtkmain.c:1169
#19 0x0804e498 in main (argc=1, argv=0xbfe487e4) at gpk-application-main.c:130

Let me know what extra information I can provide.

Thanks,

James