$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-ucd-segment.git /var/lib/mock/f40-build-2040521-48361/root/chroot_tmpdir/scmroot/rust-unic-ucd-segment
Cloning into '/var/lib/mock/f40-build-2040521-48361/root/chroot_tmpdir/scmroot/rust-unic-ucd-segment'...
$ git fetch origin 823f46332f1a6226b44da61978ffdc7fbc46214a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-ucd-segment
 * [new ref]         823f46332f1a6226b44da61978ffdc7fbc46214a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 823f463 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild