[tor-bugs] #20511 [Core Tor/Tor]: add a failsafe where if you're about to serve a consensus that you know is obsolete, don't do it

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#20511: add a failsafe where if you're about to serve a consensus that you know is
obsolete, don't do it
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 Reporter:  arma          |          Owner:
     Type:  enhancement   |         Status:  merge_ready
 Priority:  Medium        |      Milestone:  Tor: 0.3.0.x-final
Component:  Core Tor/Tor  |        Version:  Tor: 0.2.9.1-alpha
 Severity:  Normal        |     Resolution:
 Keywords:  029-proposed  |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by arma):

 Replying to [comment:8 teor]:
 > I am not sure whether we should backport this to 0.2.9, but given that's
 where the trouble started, maybe it would be a good idea to do that as a
 precaution.

 I would turn that around and ask: is it likely that there's a bug in 0.2.9
 that *isn't* in 0.3.0? That angle makes me think 0.3.0 is fine.

 That said, I'm ok with either plan.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20511#comment:10>
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