[tor-bugs] #21422 [Core Tor/Tor]: Possibly, learn more network data from GUARD_USABLE_NEVER circuits?

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#21422: Possibly, learn more network data from GUARD_USABLE_NEVER circuits?
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     Reporter:  nickm         |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.1.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  cbt guards
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
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 In `cirucit_send_next_onion_skin()`, when the circuit is built but we
 decide not to use it at all because of the guard state, we don't continue
 on to the rest of the function, where we count statistics about circuit
 build times and so on.  This could be a mistake; we should revisit it.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21422>
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