$ git clone -n https://gitee.com/hongwei-qin/mupdf.git /var/lib/mock/dist-an23.3-build-426840-72998/root/chroot_tmpdir/scmroot/mupdf
Cloning into '/var/lib/mock/dist-an23.3-build-426840-72998/root/chroot_tmpdir/scmroot/mupdf'...
$ git fetch origin 1e4309119be860e1e5b8ce6a5f1036c554f572be:KOJI_FETCH_HEAD
From https://gitee.com/hongwei-qin/mupdf
 * [new ref]         1e4309119be860e1e5b8ce6a5f1036c554f572be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e43091 Rebuild with openjpeg2-devel