harness: Handle element not being set cleanly.
If a harness is created with gst_harness_new_empty(), there might not be an internal element to unref on cleanup.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
If a harness is created with gst_harness_new_empty(), there might not be an internal element to unref on cleanup.