Steps to reproduce:
1) Click "Add new" in the pages section of the CMS
2) Select "Top Level" and "Page" pagetype and click "Create"
Error: Syntax error, unrecognized expression:[Break On This Error]
var ret = matches.call( node, expr );
4) The new pages does NOT appear. But actually it is being created and if I refresh the CMS, then the new page shows up as draft page
If I update the jQuery to 1.8.3, then the error goes away, but the CMS throws all sorts of other errors, so this seems to be no solution
The error does not occur in all SilverStripe website which I have tested. Another, more simple site, is running successfully on 3.1.0-rc1
Anybody else did see this already? Or any ideas of how this could be solved?
Thanks and best regards