rl option updates R version

[CPapadim]

When using rl=True, setup.sh is run, which updated the R version even if it is already installed. E.g. my 3.5.1 version gets updated to 3.5.2

This is kind of horrific, as it may break compatibility with other R packages that have not caught up to the latest version of R. It also does so silently so it took a long time to figure out that this is what was causing it.

[CPapadim]

Hmm poking at the script a bit more, looks like all the rl option does is to install dependencies. So if I want rule based options to be enabled, but can manually setup the necessary R / packages, is it expected to work? Or does rl do something else I'm missing?