In Curl_done() if premature is TRUE, it means this connection was said to be

DONE before the entire request operation is complete and thus we can't know in
what state it is for re-using, so we're forced to close it. In a perfect world
we can add code that keep track of if we really must close it here or not, but
currently we have no such detail knowledge.

Jerome Muffat-Meridol helped us work this out.

1 files changed, 9 insertions, 2 deletions

diff --git a/lib/url.c b/lib/url.c
index cecb8b6f4..7b06604d8 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -4445,8 +4445,15 @@ CURLcode Curl_done(struct connectdata **connp,
 
      if conn->bits.close is TRUE, it means that the connection should be
      closed in spite of all our efforts to be nice, due to protocol
-     restrictions in our or the server's end */
-  if(data->set.reuse_forbid || conn->bits.close) {
+     restrictions in our or the server's end
+
+     if premature is TRUE, it means this connection was said to be DONE before
+     the entire request operation is complete and thus we can't know in what
+     state it is for re-using, so we're forced to close it. In a perfect world
+     we can add code that keep track of if we really must close it here or not,
+     but currently we have no such detail knowledge.
+  */
+  if(data->set.reuse_forbid || conn->bits.close || premature) {
     CURLcode res2 = Curl_disconnect(conn); /* close the connection */
 
     /* If we had an error already, make sure we return that one. But