$ git clone -n https://gitee.com/opencloudos-stream/gtk-murrine-engine.git /var/lib/mock/dist-oc9-epol-build-92213-59294/root/chroot_tmpdir/scmroot/gtk-murrine-engine
Cloning into '/var/lib/mock/dist-oc9-epol-build-92213-59294/root/chroot_tmpdir/scmroot/gtk-murrine-engine'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gtk-murrine-engine
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a9c01b package init