using ginput with subplots

[Francesco Potortì]

I cannot seem to use ginput with subplots in Octave 3.2.4 on Debian with
gnuplot.  I would bet it used to work in previous Octave 3 versions.

If I do

  close;
  axis(1:4);
  [gx gy gbutton] = ginput(1)

I get a window with axes and, by clicking on it, I get back ginput's
values.  On the other hand, if I do

  close;
  subplot(2,1,2); axis(1:4);    
  subplot(2,1,1); axis(11:14);
  [gx gy gbutton] = ginput(1)

I get a window with two empty subplots.  Wherever I click on the window,
I get meaningless return values from ginput:

  gx = 0
  gy = 0
  gbutton = -1

Is this a known limitation or do I need to do something else to use
ginput on subplots?

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