From 543f5835db800b7b65ea38c200dff4dfa367cf33 Mon Sep 17 00:00:00 2001
From: Camilla Conte <6077146-spotlesstofu@users.noreply.gitlab.com>
Date: Thu, 30 Jun 2022 09:28:28 +0000
Subject: [PATCH] Document `object_attributes.oldrev` in the merge request
 webhook event

Source: merge request which introduced it - https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/5535
---
 doc/user/project/integrations/webhook_events.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/user/project/integrations/webhook_events.md b/doc/user/project/integrations/webhook_events.md
index d05e9533d7df6..e6bf766e17791 100644
--- a/doc/user/project/integrations/webhook_events.md
+++ b/doc/user/project/integrations/webhook_events.md
@@ -824,6 +824,11 @@ The available values for `object_attributes.action` in the payload are:
 - `unapproval`
 - `merge`
 
+The field `object_attributes.oldrev` is only available when there are actual code changes, like:
+
+- New code is pushed.
+- A [suggestion](../merge_requests/reviews/suggestions.md) is applied.
+
 Request header:
 
 ```plaintext
-- 
GitLab