$ git clone -n https://src.fedoraproject.org/rpms/rust-ed25519.git /var/lib/mock/f40-build-2036089-48007/root/chroot_tmpdir/scmroot/rust-ed25519
Cloning into '/var/lib/mock/f40-build-2036089-48007/root/chroot_tmpdir/scmroot/rust-ed25519'...
$ git fetch origin a1cabf3c4fab94387eace3cf9c7cd8aaee9f5744:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ed25519
 * [new ref]         a1cabf3c4fab94387eace3cf9c7cd8aaee9f5744 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1cabf3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild