Incompatibility with jquery update leads to corrupted node edit forms

On the node edit form the firefox error console says:
uncaught exception: Syntax error, unrecognized expression: [@Name='og_selective']

JQuery 1.3 is incompatible with the @ syntax.

Solution on Linux - remove the @:

sed -i.bak "s/input\[@/input\[/g" ./og/og_access.js

The error is not easy to assign to og. It occors when jquery_update is installed and results in broken JavaScript on the node edit page. You can see it from the error console though.