$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-javascript.git /var/lib/mock/f31-build-54575-28016/root/chroot_tmpdir/scmroot/ghc-language-javascript
Cloning into '/var/lib/mock/f31-build-54575-28016/root/chroot_tmpdir/scmroot/ghc-language-javascript'...
$ git reset --hard 1e94270493321b6531b7f9c40d3c49450e8ea78c
HEAD is now at 1e94270 refresh to cabal-rpm-0.13