TypeError: activities_update() missing 1 required positional argument: 'action'

[will-moore]

From QA - bot testing: https://www.openmicroscopy.org/qa2/qa/feedback/32625/

Traceback (most recent call last):

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/django/core/handlers/exception.py", line 47, in inner
response = get_response(request)

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/django/core/handlers/base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/omeroweb/decorators.py", line 538, in wrapped
retval = f(request, *args, **kwargs)

TypeError: activities_update() missing 1 required positional argument: 'action'