On Tue, Feb 7, 2017 at 8:16 PM, Henrik Bengtsson <henrik.bengts...@gmail.com
> wrote:
[...]
> I wonder if those are mostly there because of cut'n'paste behavior.
>
I don't know. What I know is that I have seen it in about 5 of my packages,
and I have also helped about 5 people that were stumbled upon it with their
own packages.
So it is definitely real. I also think that the workaround is fine. (Please
FIXME if not.) When Sys.unsetenv() is evaluated, it has already had its
effect.
G.
[...]
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