Evil: Insert mode RET behaving weirdly in SML-mode and Haskell-mode

[Sarah Brofeldt]

I don't know how to diagnose this properly sadly since the evil-ret motion confuses me, but in Haskell mode and SML-mode and probably others, return behaves oddly with respect to the indentation level you would expect, i.e. the one you would get by switching to Emacs state. Does anyone have an idea how to fix this?

-- Sarah