Assertion failed in rist_delete_flow()
If I stop the sender, the receiver sometimes logs a sequence of Waiting for data output thread to exit
messages before an assertion fails and the process aborts,
1619011982.397033|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.402140|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.407244|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.412371|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.417495|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.422616|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.427754|140737352544288.0|[INFO] Waiting for data output thread to exit
1619011982.433133|140737352544288.0|[ERROR] Data out exit loop took more than 10 seconds to exit. Something is wrong!
Assertion failed: 0 (../../../../../../../../cargo/registry/src/github.com-1ecc6299db9ec823/librist-sys-0.8.0/librist/src/flow.c: rist_delete_flow: 92)