You can add other tags to `THREAD_TAGS` as needed. Note that this is
one way only; you need to explicitly remove the tag from all the
messages in a thread to stop it from propagating again. See
You can add other tags to `THREAD_TAGS` as needed. Note that this is
one way only; you need to explicitly remove the tag from all the
messages in a thread to stop it from propagating again. See