[tor-bugs] #21407 [Core Tor/Tor]: Make the usecreatefast default 0 in tor to match the consensus

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#21407: Make the usecreatefast default 0 in tor to match the consensus
------------------------------+--------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.1.x-final
    Component:  Core Tor/Tor  |    Version:  Tor: 0.2.4.23
     Severity:  Normal        |   Keywords:  security
Actual Points:                |  Parent ID:
       Points:  1             |   Reviewer:
      Sponsor:                |
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 In #9386 we made clients use CREATE_FAST less, and changed the value in
 the consensus to 0. But we still use the default of 1 when bootstrapping
 (because there is no consensus).

 We should change this default to 0.

 Sticking this in 0.3.1 because it's a security hole for the reasons
 mentioned in #9386. (I'd go for 0.3.0, but that's frozen, and this change
 could introduce bootstrapping bugs.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21407>
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