$ git clone -n https://gitee.com/src-anolis-os/libtar.git /var/lib/mock/dist-an23-build-498554-74683/root/chroot_tmpdir/scmroot/libtar
Cloning into '/var/lib/mock/dist-an23-build-498554-74683/root/chroot_tmpdir/scmroot/libtar'...
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Updating files: 100% (5273/5273), done.
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libtar
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07267cd init