[prefab] Lazily allocate children array#292
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EspeuteClement merged 2 commits intomasterfrom Feb 4, 2026
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Now children is a property that is a ReadOnlyArray. The actual data is in _children, and shouldn't be manipulated directly. Instead use the new add/removeChildren functions. These functions also properly handle parenting.
Only one way to setup prefab hierarchy now with addChild() Migration notes : `a.parent = b` -> `b.addChild(a)`
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