Comment 2 for bug 1720372

StacktraceTop:
 deja_dup_operation_start (self=0x0, _callback_=0x0, _user_data_=0x0) at ./libdeja/Operation.vala:24
 assistant_restore_do_query_co (_data_=0x5563b2f4db40) at ./deja-dup/AssistantRestore.vala:403
 assistant_restore_do_query (self=<optimized out>, _callback_=0x0, _user_data_=0x0) at ./deja-dup/AssistantRestore.vala:22
 assistant_restore_missing_real_do_prepare (base=0x5563b296af30, assist=0x5563b296af30, page=0x5563b296ba10) at ./deja-dup/AssistantRestoreMissing.vala:224
 g_closure_invoke (closure=0x5563b28e01d0, return_value=0x0, n_param_values=2, param_values=0x7fff6a3dd5c0, invocation_hint=0x7fff6a3dd540) at ../../../../gobject/gclosure.c:804