From 3c4becd315288285b23f2de8901d57dc1b8e9041 Mon Sep 17 00:00:00 2001
From: Tonye Jack <jtonye@ymail.com>
Date: Sun, 30 Oct 2022 21:52:09 -0600
Subject: [PATCH] chore: fix detecting changes with the first PR commit

---
 diff-sha.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/diff-sha.sh b/diff-sha.sh
index ebde426c..f2ba2b87 100644
--- a/diff-sha.sh
+++ b/diff-sha.sh
@@ -111,7 +111,7 @@ if [[ -z $GITHUB_BASE_REF ]]; then
       fi
 
       if [[ -z "$PREVIOUS_SHA" || "$PREVIOUS_SHA" == "0000000000000000000000000000000000000000" ]]; then
-        PREVIOUS_SHA=$CURRENT_SHA
+        PREVIOUS_SHA=$(git rev-parse "$(git branch -r --sort=-committerdate | head -1 | xargs)")
       fi
 
       if [[ "$PREVIOUS_SHA" == "$CURRENT_SHA" ]]; then