$ git clone -n https://src.fedoraproject.org/rpms/testng.git /var/lib/mock/f40-build-1380124-23557/root/chroot_tmpdir/scmroot/testng
Cloning into '/var/lib/mock/f40-build-1380124-23557/root/chroot_tmpdir/scmroot/testng'...
$ git fetch origin c5e2717839a4c2bb7d89adee2bbfb54dc2a2c6ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/testng
 * [new ref]         c5e2717839a4c2bb7d89adee2bbfb54dc2a2c6ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5e2717 Rebuilt for java-21-openjdk as system jdk