$ git clone -n https://gitee.com/src-anolis-os/shim-unsigned-aarch64.git /var/lib/mock/dist-an8.6-build-186462-60586/root/chroot_tmpdir/scmroot/shim-unsigned-aarch64
Cloning into '/var/lib/mock/dist-an8.6-build-186462-60586/root/chroot_tmpdir/scmroot/shim-unsigned-aarch64'...
$ git fetch origin 45234510af38e2c4a91b0c7d10188f11eb983828:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/shim-unsigned-aarch64
 * [new ref]         45234510af38e2c4a91b0c7d10188f11eb983828 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4523451 [build][gcc10] Fix gcc10 build issue