Observed on all 3 nightly instances. This is a new bug; it's not present on the rc4 stable instances.
Expected behavior: To create a new template, you type its name on the main templates page and click the create button. This takes you to the template settings page, where the template title field is already filled in with the name you chose.
Actual behavior: The template title field always says "New Template". You can edit it to save the template under another name, fortunately, but you shouldn't have to.
I was only able to verify this bug as the admin user (can't get to the templates page as any other user because of the maintain role problem). So I'm not sure yet if this is an admin-only or a general problem.