$ git clone -n https://gitee.com/opencloudos-stream/perl-Date-Pcalc.git /var/lib/mock/dist-ocs23-epol9-build-213808-15817/root/chroot_tmpdir/scmroot/perl-Date-Pcalc
Cloning into '/var/lib/mock/dist-ocs23-epol9-build-213808-15817/root/chroot_tmpdir/scmroot/perl-Date-Pcalc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Date-Pcalc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 144cca3 update