$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-ExtUtils-Install.git /var/lib/mock/dist-oc9-build-71158-47524/root/chroot_tmpdir/scmroot/perl-ExtUtils-Install
Cloning into '/var/lib/mock/dist-oc9-build-71158-47524/root/chroot_tmpdir/scmroot/perl-ExtUtils-Install'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-ExtUtils-Install
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a23d844 import perl-ExtUtils-Install-2.22-2.tl4