$ git clone -n https://gitee.com/renbo02/cargo-vendored-nix.git /var/lib/mock/dist-an8.9-build-392421-72076/root/chroot_tmpdir/scmroot/cargo-vendored-nix
Cloning into '/var/lib/mock/dist-an8.9-build-392421-72076/root/chroot_tmpdir/scmroot/cargo-vendored-nix'...
$ git fetch origin da5db2d6288d9be8c83197ffafd0cf3d74af47a1:KOJI_FETCH_HEAD
From https://gitee.com/renbo02/cargo-vendored-nix
 * [new ref]         da5db2d6288d9be8c83197ffafd0cf3d74af47a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da5db2d add nix-0.28.0