$ git clone -n https://gitee.com/huajingyun/rust-rav1e.git /var/lib/mock/dist-an23-build-320476-67928/root/chroot_tmpdir/scmroot/rust-rav1e
Cloning into '/var/lib/mock/dist-an23-build-320476-67928/root/chroot_tmpdir/scmroot/rust-rav1e'...
$ git fetch origin 4337cf96e8658e14b80f4bade846860170e09d6a:KOJI_FETCH_HEAD
From https://gitee.com/huajingyun/rust-rav1e
 * [new ref]         4337cf96e8658e14b80f4bade846860170e09d6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4337cf9 Update vendor/libc