$ git clone -n https://src.fedoraproject.org/rpms/libsavitar.git /var/lib/mock/f40-build-2008332-45365/root/chroot_tmpdir/scmroot/libsavitar
Cloning into '/var/lib/mock/f40-build-2008332-45365/root/chroot_tmpdir/scmroot/libsavitar'...
$ git fetch origin c3db6f94c9b663bd291ce1a58b92bf8205139bda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsavitar
 * [new ref]         c3db6f94c9b663bd291ce1a58b92bf8205139bda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3db6f9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild