$ git clone -n https://gitee.com/opencloudos-stream/perl-Crypt-DSA.git /var/lib/mock/dist-ocs23-rebuild-test-2-build-294746-28651/root/chroot_tmpdir/scmroot/perl-Crypt-DSA
Cloning into '/var/lib/mock/dist-ocs23-rebuild-test-2-build-294746-28651/root/chroot_tmpdir/scmroot/perl-Crypt-DSA'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Crypt-DSA
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c37f821 update