$ git clone -n https://gitee.com/opencloudos-stream/python-img2pdf.git /var/lib/mock/dist-oc9-epol-build-106236-66766/root/chroot_tmpdir/scmroot/python-img2pdf
Cloning into '/var/lib/mock/dist-oc9-epol-build-106236-66766/root/chroot_tmpdir/scmroot/python-img2pdf'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/python-img2pdf
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40c0ca4 update