$ git clone -n https://gitee.com/mgb01105731/syslinux.git /var/lib/mock/dist-an23.3-build-428548-73027/root/chroot_tmpdir/scmroot/syslinux
Cloning into '/var/lib/mock/dist-an23.3-build-428548-73027/root/chroot_tmpdir/scmroot/syslinux'...
$ git fetch origin 7e838dd0669b3745493b46fc682e41e31361b749:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/syslinux
 * [new ref]         7e838dd0669b3745493b46fc682e41e31361b749 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e838dd Change the packaging method of the option.list file