When we occasionally have an in-development project, the master branch will be empty till we're ready to launch.
Visiting a URL in this format: https://bitbucket.org/username/projectname/src
Shows the following message: "The source directory is empty. Get started with your first commit."
There's no quick way to switch branches on that page, to view the develop branch.
I know there are other ways to get the /develop branch to display, but this is a bit unintuitive and the warning message on this screen is confusing to a lot of users.