$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/vulkan-tools /var/lib/mock/dist-el8-build-7962-869/root/chroot_tmpdir/scmroot/vulkan-tools
Cloning into '/var/lib/mock/dist-el8-build-7962-869/root/chroot_tmpdir/scmroot/vulkan-tools'...
$ git reset --hard origin/a8
HEAD is now at 36e956b import vulkan-tools-1.2.131.1-1.el8.src.rpm