Fix blinking issue in result panel during the execution

Texera / texera

Collaborative Machine-Learning-Centric Data Analytics Using Workflows

https://texera.github.io

Apache License 2.0

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Fix blinking issue in result panel during the execution #2690

Closed shengquan-ni closed 5 months ago

shengquan-ni commented 5 months ago

Since the backend sends "delta" updates of the results, there is a chance that nothing has changed between the two result updates. Thus, the backend may send an empty update to the frontend. This PR removes the logic that clears all results when an empty WebResultUpdate event is received, ensuring the user can see the results during execution.