Commit b2d291546fc for php.net

commit b2d291546fc0bf50a9cdfeef93b474b6adcfe40f
Author: Ilija Tovilo <ilija.tovilo@me.com>
Date:   Thu Feb 26 18:47:00 2026 +0100

    [CI][skip ci] Fix benchmarking summary

    Just compare against github.event.pull_request.base.sha. When GitHub creates
    hidden merge commits, it doesn't make sense to compare against the base anyway.

    Closes GH-21306

diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index 55a6f7dcdc1..2433bb321f8 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -1074,8 +1074,8 @@ jobs:
         run: |-
           set -x
           php benchmark/generate_diff.php \
-            ${{ github.event.pull_request.head.sha }} \
-            $(git merge-base ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }}) \
+            ${{ github.sha }} \
+            ${{ github.event.pull_request.base.sha }} \
             > $GITHUB_STEP_SUMMARY
       - uses: actions/upload-artifact@v6
         with: