$ git clone -n https://gitee.com/opencloudos-stream/kf5-kimap.git /var/lib/mock/dist-oc9-epol-build-82564-57112/root/chroot_tmpdir/scmroot/kf5-kimap
Cloning into '/var/lib/mock/dist-oc9-epol-build-82564-57112/root/chroot_tmpdir/scmroot/kf5-kimap'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/kf5-kimap
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f28d59 package init