fix: 修复设置default-expanded-level后无法check更低层级节点

[leocaan]

• 假设缺省展开2级，当check 3级节点时，会触发effectWatch重新收缩到2级，并丢失check操作check操作andling.

Description

修复设置default-expanded-level后无法check更低层级节点

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist

ℹ️ Check all checkboxes - this will indicate that you have done everything in accordance with the rules in CONTRIBUTING.

• If you introduce new functionality, document it. You can run documentation with pnpm run docs:dev command.
• Run the tests with pnpm test.
• Changes in changelog are generated from PR name. Please, make sure that it explains your changes in an understandable manner. Please, prefix changeset messages with feat:, fix:, perf:, docs:, or chore:.
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Summary by CodeRabbit

• Bug Fixes

  • Improved tree component selection handling to correctly respect disabled items and properly manage values in both single and multiple selection modes.
  • Fixed inconsistent state synchronization between selection states when handling empty selections.

• Performance

  • Optimized tree expansion behavior to only trigger when data actually changes, reducing unnecessary updates.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7d76f3d

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[coderabbitai]

📝 Walkthrough

Walkthrough

The tree component's value synchronization and expansion logic have been refactored. Expansion now triggers only when treeData changes (tracked via snapshot). The updateTreeValue function reworked to properly handle modelValue and treeValue parity across single and multiple selection modes, with explicit handling for undefined, empty, and disabled items.

Changes

Cohort / File(s)	Summary
Tree Component Update Logic packages/@core/ui-kit/shadcn-ui/src/ui/tree/tree.vue	Optimized expansion behavior with lastTreeData debouncing; reworked updateTreeValue to manage modelValue/treeValue synchronization across selection modes; added conditional branches for single vs. multiple mode handling; explicit undefined and empty state management.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• fix: 角色管理，授权的树形组件，取消勾选叶子节点，父级节点状态错误 #6680: Modifies the same updateTreeValue function to add parent-selection reconciliation logic alongside value handling.
• fix: vbenTree modelValue synchronization #5825: Updates tree.vue modelValue handling with explicit undefined handling and sync behavior in updateTreeValue.
• fix: 优化VbenTree组件 #6737: Modifies the same tree component's selection and update logic with default prop handling changes.

Suggested reviewers

• anncwb
• vince292007
• mynetfan
• jinmao88

Poem

🐰 A tree needs balance, left and right,
To track its values, shining bright,
With lastTreeData watching near,
Expansions bloom when changes appear,
Single or multiple, the choice is clear! 🌳✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the specific bug being fixed: inability to check nodes deeper than default-expanded-level when that level is set.
Description check	✅ Passed	The description includes the bug explanation, identifies it as a bug fix, and all required checklist items are marked complete, though the English description could be more detailed.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[jinmao88]

如何复现？

[leocaan]

在 playground 中
\views\system\role\modules\form.vue 中，把 修改为1，就能复现