Points disappear on zoom

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Zoom in
2. Markers disappear
3.

What is the expected output? What do you see instead?
Markers should remain

What version of the product are you using? On what operating system?
Linux

Please provide any additional information below.
I was using Google API 2.x so I changed to 2 and then also tried 3 and none
of these made a difference, but changing to 2.100 has fixed things. I
haven't tried other versions to see what version breaks it though.

Interestingly, I also make use of dragzoom_packed.js and zooming using this
never caused the markers to disappear.

Original issue reported on code.google.com by [email protected] on 18 May 2010 at 7:40