$ git clone -n https://src.fedoraproject.org/rpms/rust-remain.git /var/lib/mock/f40-build-2551130-61948/root/chroot_tmpdir/scmroot/rust-remain
Cloning into '/var/lib/mock/f40-build-2551130-61948/root/chroot_tmpdir/scmroot/rust-remain'...
$ git fetch origin 35e1897054c2989067427b55b853f893b6aec2ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-remain
 * [new ref]         35e1897054c2989067427b55b853f893b6aec2ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35e1897 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild