Save button not working anymore for ConfigurableClass on Chrome

This works in 7.1.1.

If you use a simple ConfigurableClass with only the following fields filled:

• displayInSection
• configurationClass

Then the Save button doesn't do anything when pressed. FTR I'm having the issue with the AntiSpam tool and it can checked at http://myxwiki.org/xwiki/bin/admin/XWiki/XWikiPreferences?editor=globaladmin&section=AntiSpam