$ git clone -n https://gitee.com/gaohongmei/m4.git /var/lib/mock/dist-an8.6-build-196255-60841/root/chroot_tmpdir/scmroot/m4
Cloning into '/var/lib/mock/dist-an8.6-build-196255-60841/root/chroot_tmpdir/scmroot/m4'...
$ git reset --hard b4548429608d7822c02cdb935877b4ecd4ae6de5
HEAD is now at b454842 optimise spec file