From a74c07e4d6980c01dd56e92914c52c14af7c548e Mon Sep 17 00:00:00 2001
From: Sebastien Lavoie <sebastien.lavoie@shopify.com>
Date: Mon, 23 Mar 2020 13:35:52 -0400
Subject: [PATCH] Return the response error in heartbeatLoop

`err` is always `nil`, it is checked above already.
---
 consumer_group.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/consumer_group.go b/consumer_group.go
index 0bc32b976..056b9e387 100644
--- a/consumer_group.go
+++ b/consumer_group.go
@@ -760,7 +760,7 @@ func (s *consumerGroupSession) heartbeatLoop() {
 		case ErrRebalanceInProgress, ErrUnknownMemberId, ErrIllegalGeneration:
 			return
 		default:
-			s.parent.handleError(err, "", -1)
+			s.parent.handleError(resp.Err, "", -1)
 			return
 		}