$ git clone -n https://gitee.com/opencloudos-stream/perl-Mail-Sender.git /var/lib/mock/dist-ocs23-build-31805-1305/root/chroot_tmpdir/scmroot/perl-Mail-Sender
Cloning into '/var/lib/mock/dist-ocs23-build-31805-1305/root/chroot_tmpdir/scmroot/perl-Mail-Sender'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Mail-Sender
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 049f4a4 !1 Remove perl-libs which will be generated by perl-generators >= 1.15 Merge pull request !1 from jackxjchen/master