From b33eb154f020b8631e006330e2ec28aa998a321c Mon Sep 17 00:00:00 2001
From: Shravan Konduru <42595673+shravan1k@users.noreply.github.com>
Date: Tue, 28 Jun 2022 14:08:25 -0700
Subject: [PATCH] Remove 422 error logging (#323)

---
 bulldozer/merge.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/bulldozer/merge.go b/bulldozer/merge.go
index 4f3d9a044..896e17cf6 100644
--- a/bulldozer/merge.go
+++ b/bulldozer/merge.go
@@ -103,7 +103,11 @@ func (m *GitHubMerger) defaultMerge(ctx context.Context, pullCtx pull.Context, m
 
 func (m *GitHubMerger) DeleteHead(ctx context.Context, pullCtx pull.Context) error {
 	_, head := pullCtx.Branches()
-	_, err := m.client.Git.DeleteRef(ctx, pullCtx.Owner(), pullCtx.Repo(), fmt.Sprintf("refs/heads/%s", head))
+	resp, err := m.client.Git.DeleteRef(ctx, pullCtx.Owner(), pullCtx.Repo(), fmt.Sprintf("refs/heads/%s", head))
+	// Disregard the error since Github may delete the branch before we do
+	if resp.StatusCode == http.StatusUnprocessableEntity {
+		return nil
+	}
 	return errors.WithStack(err)
 }