fix: Error in Destructuring and Exiting Iteration Thread

[liyigang1]

Modify that only cached iteration threads bind this exit signal

Log: Error in Destructuring and Exiting Iteration Thread
Bug: https://pms.uniontech.com/bug-view-259807.html https://pms.uniontech.com/bug-view-259807.html

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在RootInfo::~RootInfo()中，等待已终止的线程可能会导致死锁，因为stop()和wait()之间没有同步。
• 在clearTraversalThread函数中，isRefresh参数被错误地添加了一个不必要的布尔值，这可能会导致混淆。
• 在ut_rootinfo.cpp测试文件中，clearTraversalThread函数的调用缺少了isRefresh参数，这可能会影响测试结果。

是否建议立即修改:

• 是

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: liyigang1, max-lvs

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[liyigang1]

/merge