After changing the name of a project group, the project dissapears and is not accessible, not even by the admin user.

In the project view for a given project, if i change the name of the project (project group name), then the project disappears and is not accessible from continuum.
Not even the admin can see it...

I have changed the project name from "name" to "name " in my test.

I was able to recover the projects by directly connecting to the derby database and updating the projectgroup table doing
>update projectgroup set name='name' where name='name ';