$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-CPAN-Changes.git /var/lib/mock/dist-oc8-build-81754-55916/root/chroot_tmpdir/scmroot/perl-CPAN-Changes
Cloning into '/var/lib/mock/dist-oc8-build-81754-55916/root/chroot_tmpdir/scmroot/perl-CPAN-Changes'...
$ git fetch origin 7a15f2c123424b662ec0b7233007e524d1346f80:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-CPAN-Changes
 * [new ref]         7a15f2c123424b662ec0b7233007e524d1346f80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a15f2c import perl-CPAN-Changes-0.400002-13.tl3