$ git clone -n http://8.131.229.236/anolis-os/ghc-syb /var/lib/mock/dist-an8-dep-build-17411-3291/root/chroot_tmpdir/scmroot/ghc-syb
Cloning into '/var/lib/mock/dist-an8-dep-build-17411-3291/root/chroot_tmpdir/scmroot/ghc-syb'...
$ git reset --hard origin/a8
HEAD is now at 86a8c4d import ghc-syb-0.7-2.el8