$ git clone -n https://src.fedoraproject.org/rpms/ghc-haskell-src-exts.git /var/lib/mock/f31-build-54438-28001/root/chroot_tmpdir/scmroot/ghc-haskell-src-exts
Cloning into '/var/lib/mock/f31-build-54438-28001/root/chroot_tmpdir/scmroot/ghc-haskell-src-exts'...
$ git reset --hard 7a5bf1b79edd8575e3510dfa0d3932f249d47522
HEAD is now at 7a5bf1b update to 1.20.3