tordate mechanism is essentially disabled in the test suite due to incorrect vstart/vend expectations
See https://gitlab.tails.boum.org/tails/tails/-/issues/18367#note_172586 and follow-ups.
Given tordate should go away in the next few months, I don't think we should spend time on this, but let's at least record it so that hopefully nobody has to re-discover it independently.
issue