[MacPorts] #39638: Proxy is removed when doing port upgrade outdated

[MacPorts]

#39638: Proxy is removed when doing port upgrade outdated
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  Reporter:  lagrave+bugs+macosforge.org@…  |      Owner:  macports-
      Type:  defect                         |  tickets@…
  Priority:  Normal                         |     Status:  new
 Component:  base                           |  Milestone:
Resolution:                                 |    Version:  2.1.3
      Port:                                 |   Keywords:
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Comment (by lagrave+bugs+macosforge.org@…):

 Well, it wasn't even re-installed after the upgrade was finalized. I think
 this even might be a regression: I remember there was problems with
 upgrading privoxy a couple of years ago.

 Besides, even if you unlink a binary it does not disappear until it is
 quit so I don't know what happened here. Anyway, run ports without proxy?
 Test if a proxy originating from ports is used and present a warning?

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Ticket URL: <https://trac.macports.org/ticket/39638#comment:3>
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