fix: memory leak caused by function cache #1891
Merged
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🤔 This is a ...
🔗 Related issue link
💡 Background and solution
In some frequently called function scenarios, such as attribute parsing, a cache strategy is used for tool functions to optimize performance. However, this part of the cache is not released in time when the canvas instance is destroyed, resulting in serious memory leaks.
By clearing the function cache in time when the canvas instance is destroyed, the memory leak problem can be safely fixed.
📝 Changelog
☑️ Self Check before Merge