From 1f501dae9e12cf092ec6eb5416620d5287a97074 Mon Sep 17 00:00:00 2001
From: delvh <dev.lh@web.de>
Date: Mon, 6 Nov 2023 03:05:24 +0100
Subject: [PATCH] Fix JS NPE when viewing specific range of PR commits (#27912)

This should be the easiest fix.
While other solutions might be possible that exterminate the root cause,
they will not be as trivial.
---
 web_src/js/components/DiffCommitSelector.vue | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web_src/js/components/DiffCommitSelector.vue b/web_src/js/components/DiffCommitSelector.vue
index 3f7100d201..439840c306 100644
--- a/web_src/js/components/DiffCommitSelector.vue
+++ b/web_src/js/components/DiffCommitSelector.vue
@@ -94,7 +94,7 @@ export default {
     focusElem(elem, prevElem) {
       if (elem) {
         elem.tabIndex = 0;
-        prevElem.tabIndex = -1;
+        if (prevElem) prevElem.tabIndex = -1;
         elem.focus();
       }
     },