From 02246f64d2ae39150bba9476ffb3cf2eaf7414cf Mon Sep 17 00:00:00 2001
From: Matheus B <matheus_ob59@hotmail.com>
Date: Tue, 16 Jan 2024 20:01:03 -0300
Subject: [PATCH] Include undefined on findClosestParent return types and
 update the function

---
 packages/mermaid/src/diagrams/git/gitGraphRenderer.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/mermaid/src/diagrams/git/gitGraphRenderer.js b/packages/mermaid/src/diagrams/git/gitGraphRenderer.js
index d14404db4..f9df1db34 100644
--- a/packages/mermaid/src/diagrams/git/gitGraphRenderer.js
+++ b/packages/mermaid/src/diagrams/git/gitGraphRenderer.js
@@ -70,7 +70,7 @@ const drawText = (txt) => {
  * the one farther down the graph, since that means it is closer to its child.
  *
  * @param {string[]} parents
- * @returns {string}
+ * @returns {string | undefined}
  */
 const findClosestParent = (parents) => {
   let closestParent = '';
@@ -84,7 +84,7 @@ const findClosestParent = (parents) => {
     }
   });
 
-  return closestParent;
+  return closestParent || undefined;
 };
 
 /**