[tor-bugs] #22231 [Core Tor/Tor]: prevent recurrence of CID 1397192

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#22231: prevent recurrence of CID 1397192
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 Reporter:  catalyst      |          Owner:  catalyst
     Type:  defect        |         Status:  needs_review
 Priority:  Medium        |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by nickm):

 Looks good; tests pass; merging!

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22231#comment:3>
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