unreproducible segfault when disposing a not prepared TpAccountManager instance

Submitted by Cosimo Alfarano

Assigned to Telepathy bugs list

I've noticed that when I try to dispose an instance of TpAccountManager without preparing it, it shows the following:

(process:7055): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `TpAccountManager'

(process:7055): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed

(process:7055): tp-glib-CRITICAL **: tp_account_manager_is_prepared: assertion `TP_IS_ACCOUNT_MANAGER (manager)' failed

Depending on the situation, the process trying to dispose may segfault.