$ git clone -n https://gitee.com/opencloudos-stream/mupdf.git /var/lib/mock/dist-oc9-epol-build-241037-82791/root/chroot_tmpdir/scmroot/mupdf
Cloning into '/var/lib/mock/dist-oc9-epol-build-241037-82791/root/chroot_tmpdir/scmroot/mupdf'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mupdf
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67a3d87 !4 upgraded to upstream version 1.27.2 and fixed CVEs Merge pull request !4 from jeremiazhao/master