[tor-bugs] #19071 [Core Tor/Tor]: Check existing fallback fingerprints, IPs, and ports before 0.2.8-rc

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#19071: Check existing fallback fingerprints, IPs, and ports before 0.2.8-rc
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 Reporter:  teor                                 |          Owner:  teor
     Type:  enhancement                          |         Status:  closed
 Priority:  Medium                               |      Milestone:  Tor:
Component:  Core Tor/Tor                         |  0.2.8.x-final
 Severity:  Normal                               |        Version:  Tor:
 Keywords:  must-fix-before-028-stable,          |  0.2.8.2-alpha
  TorCoreTeam201606                              |     Resolution:  fixed
Parent ID:                                       |  Actual Points:  0.5
 Reviewer:                                       |         Points:  0.5
                                                 |        Sponsor:
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Comment (by teor):

 Please see my branch bug19071-extra on maint-0.2.8 (after the bug19071-v2
 merge):
 * The way that I commented-out the fallbacks confused stem, which also
 parses the fallback file.
 * I forgot to exclude the fallback that changed its DirPort, which would
 also confuse stem.
 * The operator who added an IPv6 address confirmed it's permanent, so I
 added it to the whitelist for 0.2.9, but not the list of fallbacks for
 0.2.8. (No new info at this stage.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19071#comment:7>
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