$ git clone -n http://8.131.229.236/anolis-os/tzdata /var/lib/mock/dist-el8-updates-build-16625-2666/root/chroot_tmpdir/scmroot/tzdata
Cloning into '/var/lib/mock/dist-el8-updates-build-16625-2666/root/chroot_tmpdir/scmroot/tzdata'...
$ git reset --hard origin/a8
HEAD is now at 529ac95 update to tzdata-2021a-1.el8