todo new crashes

[WhyNotHugo]

todo new crashes:

$ todo new
Traceback (most recent call last):
  File "/usr/bin/todo", line 11, in <module>
    load_entry_point('todoman==2.0.2', 'console_scripts', 'todo')()
  File "/usr/lib/python3.6/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3.6/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/todoman/cli.py", line 62, in command_wrap
    return command(*a, **kw)
  File "/usr/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/lib/python3.6/site-packages/todoman/cli.py", line 150, in new
    ui = TodoEditor(todo, ctx.obj['db'].values(), ctx.obj['formatter'])
AttributeError: 'Database' object has no attribute 'values'