$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-Curve25519.git /var/lib/mock/f40-build-2622011-64824/root/chroot_tmpdir/scmroot/perl-Crypt-Curve25519
Cloning into '/var/lib/mock/f40-build-2622011-64824/root/chroot_tmpdir/scmroot/perl-Crypt-Curve25519'...
$ git fetch origin 67dca737afdca7624a92c8e16ffc6d6f24e31f9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-Curve25519
 * [new ref]         67dca737afdca7624a92c8e16ffc6d6f24e31f9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67dca73 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild