$ git clone -n https://src.fedoraproject.org/rpms/arch-test.git /var/lib/mock/f41-build-side-1-2631839-25742/root/chroot_tmpdir/scmroot/arch-test
Cloning into '/var/lib/mock/f41-build-side-1-2631839-25742/root/chroot_tmpdir/scmroot/arch-test'...
$ git fetch origin 7661b90f307aa79a085b6b0821a078b16b75818d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arch-test
 * [new ref]         7661b90f307aa79a085b6b0821a078b16b75818d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7661b90 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild