$ git clone -n https://gitee.com/opencloudos-stream/perl-Date-Calc.git /var/lib/mock/dist-ocs23-base-build-292809-28352/root/chroot_tmpdir/scmroot/perl-Date-Calc
Cloning into '/var/lib/mock/dist-ocs23-base-build-292809-28352/root/chroot_tmpdir/scmroot/perl-Date-Calc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Date-Calc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2b26c2 Rebuilt for clarifying the packages requirement in BaseOS and AppStream