$ git clone -n https://src.fedoraproject.org/rpms/nss_wrapper.git /var/lib/mock/f40-build-2616338-64297/root/chroot_tmpdir/scmroot/nss_wrapper
Cloning into '/var/lib/mock/f40-build-2616338-64297/root/chroot_tmpdir/scmroot/nss_wrapper'...
$ git fetch origin 277ea5f9066a40c76eb0786ba824445b8375114c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nss_wrapper
 * [new ref]         277ea5f9066a40c76eb0786ba824445b8375114c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 277ea5f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild