Steps to reproduce:
1. Create a pipeline.
2. get the pipeline's bus and add a callback to it.
3. Play the video file.
4. Listen on the bus message: GST_MESSAGE_STATE_CHANGED
       4.1 use gst_message_state_change() to get the old & new state.
           if(old == READY && new == PAUSE)
                #generate a query using 
                 query = gst_query_new_seeking(GST_FORMAT_TIME);
                 if(gst_element_query(playbin, query)
                       gst_query_parse_seeking()
                 you will get the seekable flag as TRUE.
               #Similarly genertate a query to get the duration.
                you will see the duration=0;
5. Similarly genertate a query to get the position of the seek, say after every second, it will give the position correctly.
6. Now when you try to seek the video to new position, it gives the following error messages
"(olaiplayer:22967): GStreamer-CRITICAL **: gst_event_new_new_segment_full: assertion `start != -1' failed
(olaiplayer:22967): GStreamer-CRITICAL **: gst_pad_push_event: assertion `event != NULL' failed"
 and the video restarts from the begining.

The same problem is seen with the totem-player 2.18.2 version.