Description of problem:
Just starting and stopping gpdf causes lots of spewages to stderr.

Version-Release number of selected component (if applicable):
2.8.0-1

How reproducible:
100%

For example:

(gpdf:18880): Bonobo-CRITICAL **: file bonobo-widget.c: line 325
(bonobo_widget_get_control_frame): assertion `BONOBO_IS_WIDGET
(bonobo_widget)' failed

(gpdf:18880): Bonobo-CRITICAL **: file bonobo-control-frame.c: line
571 (bonobo_control_frame_set_autoactivate): assertion
`BONOBO_IS_CONTROL_FRAME (frame)' failed

(gpdf:18880): Bonobo-CRITICAL **: file bonobo-widget.c: line 325
(bonobo_widget_get_control_frame): assertion `BONOBO_IS_WIDGET
(bonobo_widget)' failed

(gpdf:18880): Bonobo-CRITICAL **: file bonobo-control-frame.c: line
533 (bonobo_control_frame_control_deactivate): assertion
`BONOBO_IS_CONTROL_FRAME (frame)' failed

(gpdf:18880): Bonobo-WARNING **: Non-toolbar parent '<NULL-instance>'

(gpdf:18880): Bonobo-CRITICAL **: file
bonobo-ui-toolbar-control-item.c: line 107
(impl_toolbar_reconfigured): assertion `toolbar != NULL' failed