$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-explore.git /var/lib/mock/f40-build-2482891-61635/root/chroot_tmpdir/scmroot/rust-nu-explore
Cloning into '/var/lib/mock/f40-build-2482891-61635/root/chroot_tmpdir/scmroot/rust-nu-explore'...
$ git fetch origin cbd54ff8dda936da5c8af8e96390a5a2f3d7e384:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-explore
 * [new ref]         cbd54ff8dda936da5c8af8e96390a5a2f3d7e384 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbd54ff Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild