$ git clone -n https://gitee.com/mgb01105731/syslinux.git /var/lib/mock/dist-an23-build-139265-51771/root/chroot_tmpdir/scmroot/syslinux
Cloning into '/var/lib/mock/dist-an23-build-139265-51771/root/chroot_tmpdir/scmroot/syslinux'...
$ git reset --hard 3c4db4ce487e20822554f983374a3d2a1b1c7e8f
HEAD is now at 3c4db4c  optimise spec file & add doc package