Blank dialog box, clone dialog wears out its welcome
This bug happens when you try to clone a repository to an existing directory.
1. Go to Repository -> New Cloned
2. Select a repository to clone (mine was http, I don't know if that matters)
3. Select a folder to clone to
4. delete the new repo name from the text input, leaving the path to it.
5. Hit clone. A blank dialog box appears and the clone dialog can no longer be dismissed.