$ git clone -n https://gitee.com/mgb01105731/policycoreutils.git /var/lib/mock/dist-an23-build-127309-46192/root/chroot_tmpdir/scmroot/policycoreutils
Cloning into '/var/lib/mock/dist-an23-build-127309-46192/root/chroot_tmpdir/scmroot/policycoreutils'...
$ git reset --hard origin/a23
HEAD is now at d70f492 remove the trailing newline for /etc/system_release