Comment 2 for bug 1236448

StacktraceTop:
 g_list_remove (list=0x8080801480808014, data=data@entry=0x7f1fc2bdfae0) at /build/buildd/glib2.0-2.38.0/./glib/glist.c:475
 jabber_si_xfer_free (xfer=xfer@entry=0x7f1fc2bdfae0) at /build/buildd/pidgin-2.10.7/./libpurple/protocols/jabber/si.c:1317
 jabber_si_xfer_cancel_send (xfer=0x7f1fc2bdfae0) at /build/buildd/pidgin-2.10.7/./libpurple/protocols/jabber/si.c:1376
 purple_xfer_cancel_local (xfer=0x7f1fc2bdfae0) at /build/buildd/pidgin-2.10.7/./libpurple/ft.c:1529
 _g_closure_invoke_va (closure=0x7f1fc2a70340, return_value=0x0, instance=0x7f1f8429acf0, args=0x7fff09da7cf8, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.38.0/./gobject/gclosure.c:840