$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/libserializer /var/lib/mock/dist-el8-build-6940-251/root/chroot_tmpdir/scmroot/libserializer
Cloning into '/var/lib/mock/dist-el8-build-6940-251/root/chroot_tmpdir/scmroot/libserializer'...
$ git reset --hard origin/a8
HEAD is now at 76d7332 import libserializer-1.1.2-18.el8.src.rpm