listFigureScripts getWellSample() has no attribute 'image'

[will-moore]

From https://www.openmicroscopy.org/qa2/qa/feedback/42082/

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)

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/omeroweb/decorators.py", line 597, in wrapper
context = f(request, *args, **kwargs)

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/omeroweb/webclient/views.py", line 1742, in load_metadata_details
figScripts = manager.listFigureScripts()

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/omeroweb/webclient/controller/container.py", line 340, in listFigureScripts
image = self.image or self.getWellSampleImage()

File "/opt/omero/web/venv3/lib64/python3.6/site-packages/omeroweb/webclient/controller/container.py", line 205, in getWellSampleImage
return self.well.getWellSample(index).image()

AttributeError: 'NoneType' object has no attribute 'image'