$ git clone -n https://gitee.com/mgb01105731/syslinux.git /var/lib/mock/dist-an23-build-136114-50258/root/chroot_tmpdir/scmroot/syslinux
Cloning into '/var/lib/mock/dist-an23-build-136114-50258/root/chroot_tmpdir/scmroot/syslinux'...
$ git reset --hard 78632cc33b15834838f387f0c12e6172f28705d7
HEAD is now at 78632cc  optimise spec file & add doc package