I’ve had a look in JIRA and a thorough search of the forum;
But this is my first bug and it seems so obvious I can’t believe I’m the first to report it; I must be missing something

Tell me to stick it in JIRA and I’ll so do
I’ve got two websites running v2.0.0 RC2
One running locally on a WAMP stack with PHP 5.3.0 and MySQL 5.0.88
One running hosted with PHP 5.2.13 and MySQL 5.0.90-log
Both show the same problem.
The problem is that the isfolder column in the modx_site_content table has incorrect values in it.
For example, the row for the home page has ’1’; this page does not have children and has never had children.
There are other examples where it should be ’1’ and is actually set to ’0’.
The problem is not restricted to top-level resources.
You can see this illustrated at
http://www.priddysomerset.org/ - the dropdown menus are working perfectly, but the dropdown indicators are incorrect.
I originally thought it was a Wayfinder bug, but some debugging showed that Wayfinder is only displaying the information it is provided about each resource.
So I waded into the MySQL console and inspected the database table content which confirms that Wayfinder is getting the data held in the database.
It is the database content that is incorrect.
Note: The Manager interface shows the correct resource icon; so presumably it is being set by the number of children rather than the isfolder attribute.