$ git clone -n https://gitee.com/rabbitali/mupdf.git /var/lib/mock/dist-an23.4-build-521729-76204/root/chroot_tmpdir/scmroot/mupdf
Cloning into '/var/lib/mock/dist-an23.4-build-521729-76204/root/chroot_tmpdir/scmroot/mupdf'...
$ git fetch origin b53931b1f7c655d38fbc1375e85dc469bae621cd:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/mupdf
 * [new ref]         b53931b1f7c655d38fbc1375e85dc469bae621cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b53931b Rebuild: Release 5