$ git clone -n https://gitee.com/src-anolis-os/ghc.git /var/lib/mock/dist-an8.10-build-441692-73111/root/chroot_tmpdir/scmroot/ghc
Cloning into '/var/lib/mock/dist-an8.10-build-441692-73111/root/chroot_tmpdir/scmroot/ghc'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/ghc
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91e644c import ghc-8.2.2-68.3.el8