[MacPorts] #64389: curl_multi_info_read() returned {.msg = CURLMSG_DONE, .data.result = 3 (!= CURLE_OK)}, but the error buffer is not set. curl_easy_strerror(.data.result): URL using bad/illegal format or missing URL

[MacPorts]

#64389: curl_multi_info_read() returned {.msg = CURLMSG_DONE, .data.result = 3 (!=
CURLE_OK)}, but the error buffer is not set.
curl_easy_strerror(.data.result): URL using bad/illegal format or missing
URL
-------------------------+--------------------
  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.7.99
Resolution:              |   Keywords:
      Port:              |
-------------------------+--------------------

Comment (by ryandesign):

 Oh. I thought that "but the error buffer is not set" meant we were failing
 to set something that we should set. I've also just never seen MacPorts
 emit a curl error message that way and thought that meant we weren't
 getting to our usual error handler but were seeing the result of a
 programming error.

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Ticket URL: <https://trac.macports.org/ticket/64389#comment:2>
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