$ git clone -n https://gitee.com/opencloudos-stream/rubygem-diff-lcs.git /var/lib/mock/dist-ocs23-rebuild-test-0-build-295538-28690/root/chroot_tmpdir/scmroot/rubygem-diff-lcs
Cloning into '/var/lib/mock/dist-ocs23-rebuild-test-0-build-295538-28690/root/chroot_tmpdir/scmroot/rubygem-diff-lcs'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rubygem-diff-lcs
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab845e0 Rebuilt for clarifying the packages requirement in BaseOS and AppStream