Interaction between overrides and translations in Pyramid – trying to reproduce behavior (error) seen in project based on Kotti

app:__init__.py

def includeme(config):
    config.add_translation_dirs('app:locale')
    config.add_translation_dirs('app:framework-locale')
    config.commit()
    config.scan(__name__)

framework:__init__.py

from pyramid.config import Configurator

def configure():
    config = Configurator()
    config.include('framework')
    config.commit()
    config.include('app')
    config.add_translation_dirs('framework:locale')


def includeme(config):
    config.override_asset('framework', 'app:framework-overrides/')


configure()

output

Traceback (most recent call last):
  File "/home/piotr/apps/pycharm-4.5.3/helpers/pydev/pydevd.py", line 2358, in <module>
    globals = debugger.run(setup['file'], None, None, is_module)
  File "/home/piotr/apps/pycharm-4.5.3/helpers/pydev/pydevd.py", line 1778, in run
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "/home/piotr/projects/pyramid/repro/framework/__init__.py", line 18, in <module>
    configure()
  File "/home/piotr/projects/pyramid/repro/framework/__init__.py", line 8, in configure
    config.include('framework')
  File "/home/piotr/projects/pyramid/pyramid/config/__init__.py", line 769, in include
    c = self.maybe_dotted(callable)
  File "/home/piotr/projects/pyramid/pyramid/config/__init__.py", line 869, in maybe_dotted
    return self.name_resolver.maybe_resolve(dotted)
  File "/home/piotr/projects/pyramid/pyramid/path.py", line 320, in maybe_resolve
    return self._resolve(dotted, package)
  File "/home/piotr/projects/pyramid/pyramid/path.py", line 327, in _resolve
    return self._zope_dottedname_style(dotted, package)
  File "/home/piotr/projects/pyramid/pyramid/path.py", line 376, in _zope_dottedname_style
    found = __import__(used)
  File "/home/piotr/projects/pyramid/repro/framework/__init__.py", line 18, in <module>
    configure()
  File "/home/piotr/projects/pyramid/repro/framework/__init__.py", line 10, in configure
    config.include('app')
  File "/home/piotr/projects/pyramid/pyramid/config/__init__.py", line 798, in include
    c(configurator)
  File "/home/piotr/projects/pyramid/repro/app/__init__.py", line 3, in includeme
    config.add_translation_dirs('app:locale')
  File "/home/piotr/projects/pyramid/pyramid/util.py", line 570, in wrapper
    result = wrapped(self, *arg, **kw)
  File "/home/piotr/projects/pyramid/pyramid/config/i18n.py", line 87, in add_translation_dirs
    directory)
pyramid.exceptions.ConfigurationError: "/home/piotr/projects/pyramid/repro/app/locale" is not a directory

tree

app
├── framework-overrides
├── __init__.py
framework
├── __init__.py