$ git clone -n https://gitee.com/wenyuzifang/perl-YAML.git /var/lib/mock/dist-an23-build-448619-73412/root/chroot_tmpdir/scmroot/perl-YAML
Cloning into '/var/lib/mock/dist-an23-build-448619-73412/root/chroot_tmpdir/scmroot/perl-YAML'...
$ git fetch origin 75a2820a3b2bb592b69ef1593ef089e42e40d87f:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/perl-YAML
 * [new ref]         75a2820a3b2bb592b69ef1593ef089e42e40d87f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75a2820 Update code from upstream