There is a small window during stopping when tasks have been add
to the transfer_requests queue, but never transfered to the
active_transfers array and causes the fallowing error:
GTask 0x7f2c4400e930 (source object: (nil), source tag: (nil)) finalized
without ever returning (using g_task_return_*()).
This potentially indicates a bug in the program.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9060>
c14b135861