[tor-bugs] #32407 [Core Tor/Tor]: Fix crash when calling --dump-config with failing set_options

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#32407: Fix crash when calling --dump-config with failing set_options
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     Reporter:  nickm          |      Owner:  nickm
         Type:  defect         |     Status:  assigned
     Priority:  Medium         |  Milestone:  Tor: 0.4.3.x-final
    Component:  Core Tor/Tor   |    Version:
     Severity:  Normal         |   Keywords:
Actual Points:                 |  Parent ID:  #30866
       Points:                 |   Reviewer:
      Sponsor:  Sponsor31-can  |
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 It appears that our cleanup code hits an assertion failure when we have
 been called with --dump-config and a set of options that fails in
 set_options().

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32407>
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