For the above mentioned page, activating the bottom of the 3 top flash objects (not the top big ones at the top, but the smaller one on the right below them) and then selecting any of the menu entries seems to trigger this repeatedly.
Thank you for the bug report. This has already been fixed fixed in git, in the revision c2d7d046a4f514d652cdf283cad0b6f4e489c589
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