tethys syncstores issue - callable

[snowman2]

On the dev branch, when I attempt to run:

$tethys syncstores dam_break

Traceback (most recent call last):
File "/usr/lib/tethysdev/src/manage.py", line 20, in
execute_from_command_line(sys.argv)
File "/usr/lib/tethysdev/local/lib/python2.7/site-packages/django/core/management/init.py", line 353, in execute_from_command_line
utility.execute()
File "/usr/lib/tethysdev/local/lib/python2.7/site-packages/django/core/management/init.py", line 345, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/lib/tethysdev/local/lib/python2.7/site-packages/django/core/management/base.py", line 348, in run_from_argv
self.execute(_args, *_cmd_options)
File "/usr/lib/tethysdev/local/lib/python2.7/site-packages/django/core/management/base.py", line 399, in execute
output = self.handle(_args, *_options)
File "/usr/lib/tethysdev/src/tethys_apps/management/commands/syncstores.py", line 45, in handle
self.provision_persistent_stores(options['app_name'], options)
File "/usr/lib/tethysdev/src/tethys_apps/management/commands/syncstores.py", line 122, in provision_persistent_stores
persistent_stores = app.persistent_stores()
File "/usr/lib/tethysdev/src/tethys_apps/tethysapp/dam_break/app.py", line 51, in persistent_stores
spatial=True
File "/usr/lib/tethysdev/src/tethys_apps/base/persistent_store.py", line 94, in init
super(PersistentStore, self).init(self.initializer)
File "/usr/lib/tethysdev/src/tethys_apps/base/persistent_store.py", line 31, in init
if path.callable():
AttributeError: 'str' object has no attribute 'callable'

What is going on? What am I missing?

[snowman2]

Issue fixed with this merge: 1f67ffa