Context resolves to string

[rizland]

with glia.context(pkg="dbbs_mod_collection"):
    dbbs_cell = dbbs_models.BasketCell()

Yields:

Traceback (most recent call last):
  File "protocols/psth.py", line 13, in <module>
    dbbs_cell = dbbs_models.BasketCell()
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/arborize/core.py", line 114, in __init__
    self._init_section(section)
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/arborize/core.py", line 167, in _init_section
    self._init_section_label(section, label)
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/arborize/core.py", line 186, in _init_section_label
    mod_name = g.resolve(mechanism)
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/glia/__init__.py", line 40, in resolve
    return _manager.resolve(asset, pkg=pkg, variant=variant)
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/glia/_glia.py", line 30, in wrapper
    return func(self, *args, **kwargs)
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/glia/_glia.py", line 320, in resolve
    return self.resolver.resolve(*args, **kwargs)
  File "/home/martina/.pyenv/versions/3.7.6/lib/python3.7/site-packages/glia/resolution.py", line 71, in resolve
    return resolved.mod_name
AttributeError: 'str' object has no attribute 'mod_name'