Figure properties update when exporting

Background

I was trying to solve this question ( link ), by using some undocumented axes properties. This question is not about triple y-axis but an issue I stumbled upon when trying to export the figure. Here is the code to reproduce my figure (see attached image 1):

fig1=figure(1);
%%Create two axes and add second y-axis to one
h1=axes;
h2=copyobj(h1,fig1)
yyaxis(h2,'right')

%%Plot here...

%%Fix some properties
set([h1 h2],'xlim',[0 1],'Color','none')
set(h1,'XColor','none');

%%Move one y-axis (first undocumented feature)
h2.YRuler.FirstCrossoverValue = .9;
drawnow

%%Reduce apparent length of x-axis (second undocumented feature)
h2.XRuler.Axle.VertexData=single([0 .9;0 0;0 0]);
drawnow

The problem

When exporting the figure, the XRuler.Axle.VertexData resets and the full length of the x-axis appear in the output image (compare attached image 1 and 2). The same thing has happened to me once before, when attempting to export a transparent colorbar and FaceAlpha kept resetting to its initial value. I've tried the following:

• Saving as eps, png, jpg, pdf
• Using saveas, print, export_fig

The only thing that actually worked was exporting by print and pdf, while export_fig and pdf did not work. Any idea how to properly export the figure without altering its properties?