$ git clone -n https://gitee.com/mgb01105731/mupdf_1.git /var/lib/mock/dist-an23.2-build-431685-73034/root/chroot_tmpdir/scmroot/mupdf_1
Cloning into '/var/lib/mock/dist-an23.2-build-431685-73034/root/chroot_tmpdir/scmroot/mupdf_1'...
$ git fetch origin 7c05819e5edc51fa23b85f2efb5732f78dc03918:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/mupdf_1
 * [new ref]         7c05819e5edc51fa23b85f2efb5732f78dc03918 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c05819 Rebuild with jbig2dec 0.20