[tor-bugs] #28591 [Core Tor/Tor]: Accept a future consensus for bootstrap

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#28591: Accept a future consensus for bootstrap
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  teor
     Type:  defect                               |         Status:
                                                 |  merge_ready
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  bootstrap, clock-skew, tor-guard,    |  Actual Points:  0.5
  usability, ux, s8-errors, 035-roadmap-         |
  subtask, 035-triaged-in-20180711,              |
  s8-bootstrap                                   |
Parent ID:  #28018                               |         Points:
 Reviewer:  catalyst                             |        Sponsor:
                                                 |  Sponsor8-can
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Comment (by teor):

 Replying to [comment:9 nickm]:
 > I've squashed this as `bug28591_035_squashed` and merged it to master.
 We can consider for an 0.3.5 backport, but I am a little unsure about the
 complexity.

 I would not backport #28564 / commit a9c766c , consensus expiry code on
 relays has historically caused us a lot of issues.

 If we backport #28591, let's do it in two stages:
 * #24661 for entry guards from past consensuses: 805f751 and earlier
 * #28591 (excluding #28564) for bootstrap from future consensuses: 7a45bc7
 and earlier

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28591#comment:11>
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