$ git clone -n https://src.fedoraproject.org/rpms/pamtester.git /var/lib/mock/f40-build-790829-136877/root/chroot_tmpdir/scmroot/pamtester
Cloning into '/var/lib/mock/f40-build-790829-136877/root/chroot_tmpdir/scmroot/pamtester'...
$ git fetch origin b7b9b3e7f2e70d6787627831cb70925075c319e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pamtester
 * [new ref]         b7b9b3e7f2e70d6787627831cb70925075c319e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7b9b3e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild