$ git clone -n https://src.fedoraproject.org/rpms/ghc.git /var/lib/mock/f40-build-776857-129113/root/chroot_tmpdir/scmroot/ghc
Cloning into '/var/lib/mock/f40-build-776857-129113/root/chroot_tmpdir/scmroot/ghc'...
$ git reset --hard 7122936a99c24e8411d5849dc40676454ebaaf13
HEAD is now at 7122936 Fix generated C for Modern C Initiative