$ git clone -n https://gitee.com/denisecheng/fcitx-qt5 /var/lib/mock/dist-oc9-epol-build-73769-49071/root/chroot_tmpdir/scmroot/fcitx-qt5
Cloning into '/var/lib/mock/dist-oc9-epol-build-73769-49071/root/chroot_tmpdir/scmroot/fcitx-qt5'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/denisecheng/fcitx-qt5
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51de13d update fcitx-qt5.spec.