Image Viewer crashes

[ajdapretnar]

Image Analytics version

0.6.0

Orange version

3.29.dev

Expected behavior

No crash.

Actual behavior

----------------------------- KeyError Exception ------------------------------
Traceback (most recent call last):
  File "/Users/ajda/orange/orange3-imageanalytics/orangecontrib/imageanalytics/widgets/owimageviewer.py", line 1115, in onSelectionChanged
    self.commit()
  File "/Users/ajda/orange/orange-widget-base/orangewidget/gui.py", line 1730, in unconditional_commit
    do_commit()
  File "/Users/ajda/orange/orange-widget-base/orangewidget/gui.py", line 1738, in do_commit
    commit()
  File "/Users/ajda/orange/orange3-imageanalytics/orangecontrib/imageanalytics/widgets/owimageviewer.py", line 1127, in commit
    self.Outputs.selected_data.send(None)
  File "/Users/ajda/orange/orange-widget-base/orangewidget/utils/signals.py", line 388, in send
    signal_manager.send(self.widget, self.name, value, *extra_args)
  File "/Users/ajda/orange/orange-widget-base/orangewidget/workflow/widgetsscheme.py", line 750, in send
    super().send(node, channel, value)
  File "/Users/ajda/orange/orange-canvas-core/orangecanvas/scheme/signalmanager.py", line 500, in send
    state = self.__node_outputs[node][channel]
KeyError: SchemeNode(description_id='orangecontrib.imageanalytics.widgets.owimageviewer', title='Image Viewer', ...)
-------------------------------------------------------------------------------

Steps to reproduce the behavior

I think it happens when the image URL is wrong and the widget still tries to download images from the internet, but the widget is then deleted.

Additional info (worksheets, data, screenshots, ...)

[PrimozGodec]

This error seems very strange (it looks like the output node is not in the dictionary); I am not sure if it has anything to do with data (or missing image). @ajda, can you reproduce it? I cannot come up with the reason for it. Maybe @ales-erjavec has any idea?

[ajdapretnar]

No, I cannot anymore. I will close it for now.