XDamageAdd problem with xserver-1.6-branch

[Thomas Hellström]

Hi!

Attached is a simple program that repeatedly calls XDamageAdd with a 
rectangle in the upper left corner, in a way very similar to what's done 
when a DRI client runs glxSwapBuffers().

The problem I'm seeing with this is that an xterm window gets corrupted 
when placed either to the right of
or below the region in question. I'm not sure whether this is a usage 
problem, an X server problem or an xterm problem, but i can't really 
recall seeing it before.

Any insight would be appreciated.

Thanks,
Thomas

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