$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-Curve25519.git /var/lib/mock/f40-build-2016162-46160/root/chroot_tmpdir/scmroot/perl-Crypt-Curve25519
Cloning into '/var/lib/mock/f40-build-2016162-46160/root/chroot_tmpdir/scmroot/perl-Crypt-Curve25519'...
$ git fetch origin 5e7b02883b1d4966f8d6c00db6426fbdc0e8ad17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-Curve25519
 * [new ref]         5e7b02883b1d4966f8d6c00db6426fbdc0e8ad17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e7b028 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild