[Mediawiki-l] upgrade to 1.17 broke gallery tag

[Alok]

Hi

We had mediawiki instance (version 1.15) running for several months. We 
recently upgraded it to version 1.17
However we noticed that after the upgrade, the <gallery> tag does not 
work as expected.

Here are the examples of the failing gallery tag : 
http://projectbrahma.org/index.php?title=Testpage

Any suggestions on how to fix this will be greatly appreciated.

Thanks,
Alok