Refactor: based: Clean up parse_local_options_v2()

Improve clarity of conditions. Use consistent order when setting
booleans. Add a trace message for always-local ops.

If needs_forward is TRUE, then cib_process_request() ignores all the
other booleans. For clarity, set them to FALSE.

In particular, needs_reply = TRUE is nonsense if needs_forward is TRUE.

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>