From 584128281bea62986ad633f8eba6eae0297e2663 Mon Sep 17 00:00:00 2001
From: Eric Flumerfelt <eflumerf@fnal.gov>
Date: Wed, 8 Jan 2025 16:29:50 -0600
Subject: [PATCH] Update PR sha retrieval

---
 .github/workflows/git-whitespace.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/git-whitespace.yml b/.github/workflows/git-whitespace.yml
index bc36fbf..678f649 100755
--- a/.github/workflows/git-whitespace.yml
+++ b/.github/workflows/git-whitespace.yml
@@ -16,4 +16,4 @@ jobs:
     name: Check Git whitespace
     uses: Mu2e/.github/.github/workflows/git-whitespace.yml@stable
     with:
-      against-ref: ${{ github.event_name == 'pull_request' && github.base_ref || github.event_name == 'push' && github.event.before || 0 }}
+      against-ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.base.sha || github.event_name == 'push' && github.event.before || 0 }}