Yisroel Baum
1342a67cf3
introduce a module-level expandedNodeIds set that tracks which nodes the user has manually expanded. renderTree consults the set when deciding initial visibility (falling back to the depth-based default for a fresh load), the toggle click handler keeps the set in sync, and both add-child save handlers add the parent's id before triggering the re-fetch. on a fresh load the set starts empty so root-only-open behavior is unchanged and the existing toggle tests keep passing. |
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