$ git clone -n https://src.fedoraproject.org/rpms/ghc-haskell-gi-base.git /var/lib/mock/f31-build-54433-28001/root/chroot_tmpdir/scmroot/ghc-haskell-gi-base
Cloning into '/var/lib/mock/f31-build-54433-28001/root/chroot_tmpdir/scmroot/ghc-haskell-gi-base'...
$ git reset --hard ebe255cc09636528c679eb96c0c2953e4cf99086
HEAD is now at ebe255c update to 0.21.4