Setting playbin2's uri inside about-to-finish signal handler does not work

[Mabio Coelho]

Hi all,

I'm using gst-plugins-base-0.10.32.2/tests/icles/playback/test7.c to
test the gap-less playback feature of playbin2 but it is not working.

Running the unmodified example plays great for the first uri, executes
the about_to_finish_cb properly, but when it is supposed to play the
next URI, throws the message bellow:
(test7:7165): GLib-GObject-CRITICAL **: g_object_set: assertion
`G_IS_OBJECT (object)' failed

Then stops playing....

Any clues what is this?

Many thanks in advance,

-- 

MRCN