$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-ucd-normal.git /var/lib/mock/f40-build-2644296-66501/root/chroot_tmpdir/scmroot/rust-unic-ucd-normal
Cloning into '/var/lib/mock/f40-build-2644296-66501/root/chroot_tmpdir/scmroot/rust-unic-ucd-normal'...
$ git fetch origin d9ff93cd5834fa6ef010c105c95afba83705e8df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-ucd-normal
 * [new ref]         d9ff93cd5834fa6ef010c105c95afba83705e8df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9ff93c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild