ess-smart-equals is an ELPA mode for ESS[R] that provides "<-" when you type "=", but does this smartly, i.e., not in comments nor within parentheses, etc. By default, ess-smart-equals is loaded for ess-roxy-mode. However, I have found this to be dangerous. For example, polymode apparently loads roxy for all of the indirect buffer modes like C++. What happens then, typing "=" in c++-mode will give you "<-" which is very annoying. The easiest thing to do here is remove ess-roxy-mode from ess-smart-equals-default-modes. But could/should this be fixed in polymode itself? If so, then how? Thanks