$ git clone -n http://8.131.229.236/anolis-os/ghc-SHA /var/lib/mock/dist-an8-dep-build-17384-3202/root/chroot_tmpdir/scmroot/ghc-SHA
Cloning into '/var/lib/mock/dist-an8-dep-build-17384-3202/root/chroot_tmpdir/scmroot/ghc-SHA'...
$ git reset --hard origin/a8
HEAD is now at fa4b231 import ghc-SHA-1.6.4.2-7.el8