• Fix : [RT #115792] : Latest blead stack unwind work causes infloop
  in a test.
  A change in how the core frees temporary values after eval
  interacted badly with Variable::Magic and caused infinite loops
  when a free callback was attached to a wizard. This change was
  temporarily reverted, but is going to be reinstated, and
  Variable::Magic is now able to play nicely when this happens.
  Thanks Peter Rabbitson for reporting and David Mitchell for
  providing a fix.