$ git clone -n https://gitee.com/ocs-upgrade/perl-CPAN-Changes.git /var/lib/mock/dist-ocs23-build-284950-27555/root/chroot_tmpdir/scmroot/perl-CPAN-Changes
Cloning into '/var/lib/mock/dist-ocs23-build-284950-27555/root/chroot_tmpdir/scmroot/perl-CPAN-Changes'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-upgrade/perl-CPAN-Changes
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a329be Upgrade to version 0.500004