$ git clone -n https://gitee.com/src-anolis-os/grub2.git /var/lib/mock/dist-an8-build-71193-37360/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an8-build-71193-37360/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard origin/a8
Updating files:  80% (406/506)
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Updating files: 100% (506/506), done.
HEAD is now at 304c9b7 build: build pc-modules package on x86_64