More precisely, they were not consistent by the behavior of -custd mode.
Indeed, It was returning the values of variables after the step is performed.

In the custom demon mode, sasa returns Enab and variable values before
the Activate is computed by the demon.

Chosing one behavior or the other is arguable ; the main advantage of
this choice is that we don't miss the initial values.

Save/restore the PRGS at checkpoints (necessary for internal demons).

Actually, I've just realized that the I/O mode of rdbg already makes
it possible to use sasa from rdbg (exit event only). This plugin would
only be necessary when we would need a finer grained intrumentation, e.g.,
to stop at enable step, or to at each process call/exit.