Recent bug? in R source blocks generating images

[William Denton <wtd@pobox.com>]

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Sorry about that; hit send too soon.

There's something odd happening to me tonight with R source blocks and :session.

This works, and generates an image:

#+BEGIN_SRC R :results graphics :file example.png
plot(1)
#+END_SRC

But if I start an R session (M-x R) and then run this, with :session, I get an 
error.

#+BEGIN_SRC R :session :results graphics :file example.png
plot(1)
#+END_SRC

The error is

+ + Error: unexpected symbol in:
"plot(1)
},error=function(e){plot(x=-1:1, y=-1:1, type='n"

That error= bit at the end looks related to my plot() example, but I don't think 
it is: the same error appears if I use ggplot2 (which is how I noticed it).

This is with Emacs and Org compiled from current source trees.  It was working 
earlier this week, but I've updated since then.  I refreshed everything 
(including R packages) and still get the error.  I looked at the recent Org 
commits but don't see what might have done it, but I also don't think I'm doing 
anything wrong.

Bill
-- 
William Denton ↔  Toronto, Canada ↔  https://www.miskatonic.org/