document why conn gets released explicitly early on pinning

diff --git a/src/forward.cc b/src/forward.cc
index 3ddd618ba35084786aa0670311921fda98a8ea5c..633a366a375965fa57ecd037b08ff9f40bd2bf0c 100644 (file)
--- a/src/forward.cc
+++ b/src/forward.cc
@@ -781,7 +781,7 @@ FwdState::connectStart()
         debugs(17,2,HERE << " Pinned connection " << pinned_connection << " not valid. Releasing.");
         request->releasePinnedConnection();
         paths.shift();
-        conn = NULL;
+        conn = NULL; // maybe release the conn memory. it's not needed by us anyway.
         connectStart();
         return;
     }