[flexotask-development] Added paranoid checking ... may affect existing schedulers

[Joshua A. <jo...@us...>]

I just committed a change to the validator and some of the runtime data
structures that could cause a "regression" in some multi-threaded
schedulers (the streaming scheduler might be affected).   I believe that
any such "regression" would not be a real regression but rather a revealing
of a latent bug.  However, let me know of any problems.  This checking was
added as part of a successful attempt to track down a nasty and very
intermittent bug in the Ptides scheduler.

Josh