[tor-bugs] #23633 [Core Tor/Tor]: Why does roflcopter have an empty protocol line in the consensus?

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#23633: Why does roflcopter have an empty protocol line in the consensus?
------------------------------+--------------------
     Reporter:  arma          |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------
 {{{
 r roflcopter Qcrc8IhWf84BI34AQRKJU5q7EpU 2017-09-24 03:25:06
 159.203.10.141 443 80
 m EDFeSxWDaRrY9S2ZROrxpABlrFPqnJQ7IbYXpEdkQao
 s Fast Guard HSDir Running Stable V2Dir Valid
 v Tor 0.2.9.11
 pr
 w Bandwidth=7110
 }}}

 The descriptor looks reasonably normal. There is no Sybil on that IP
 address.
 https://atlas.torproject.org/#details/41CADCF088567FCE01237E00411289539ABB1295

 It is blank in all the votes too. It's blank in the vanilla-flavored
 consensus too.

 What would cause the "pr" line to be left blank?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23633>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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