Loss of identified points

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Minimizing and then restoring a window that contains identified points
leads to an error on my linux box.
See the posting guide.  NEWS in R-patched says

     ? In R 3.0.0, identify() and locator() did not record information
       correctly, so replaying a graph (e.g. by copying it to another
       device) would fail. (PR#15271)

If your device does not use backing store (mine does) then minimizing 
and replaying will replay the display list.

sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: i686-pc-linux-gnu (32-bit)

locale:
  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
  [3] LC_TIME=en_US.UTF-8        LC_COLLATE=C
  [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
  [7] LC_PAPER=C                 LC_NAME=C
  [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base
sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: i686-pc-linux-gnu (32-bit)

locale:
  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
  [3] LC_TIME=en_US.UTF-8        LC_COLLATE=C
  [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
  [7] LC_PAPER=C                 LC_NAME=C
  [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

plot(1:5, 1:5)
identify(1:5, 1:5, letters[2:6])
# Identify a point or two, then minimize the graph window, then restore it
Error: first argument must be a string (of length 1) or native symbol
reference

The graph returns  but the labels are lost.

Terry T.

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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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