$ git clone -n https://src.fedoraproject.org/rpms/NLopt.git /var/lib/mock/f42-build-3181737-40950/root/chroot_tmpdir/scmroot/NLopt
Cloning into '/var/lib/mock/f42-build-3181737-40950/root/chroot_tmpdir/scmroot/NLopt'...
$ git fetch origin c3411d02b7b95bfb61c05abc95ee9f2ef410df2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/NLopt
 * [new ref]         c3411d02b7b95bfb61c05abc95ee9f2ef410df2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3411d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild