Relating assoc is not revealed
Try this:
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Reveal this situation:
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Hide the blue assoc. The red assoc disappears as well. The "One" topic remains visible. All correct so far.
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Reveal the blue assoc again.
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Starting from the blue assoc reveal the (already visible) "One" topic.
The red assoc is supposed to reappear, but it does not. A bug.
Note: if you hide the "One" topic before revealing it (step 4) the red assoc appears as expected.