[JENKINS-28690] Aha! So I believe this will fully resolve any of these kinds of deadlocks

- Without this, then it becomes a question of find catch and release for each potential code path that
  might end up restoring the interrupt flag on the current thread.
- Since standard Lock support is kind enough to restore the interrupt flag on the current thread
  when blocked waiting for the lock, that would be a hiding to nothing
- I welcome others to review my logic detailed in the code comment
- I am leaving the code comment as this is IMHO too important to assume that somebody will
  check the git commit history